著者

畑 一志 坪内 俊之

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.24, no.6, pp.351-358, 2003-06-10 (Released:2009-02-22)

参考文献数

25

被引用文献数

1

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Friction drive CVT that evolved to traction drive CVT (T-CVT) was designed toward the end of 19th century, in a short period after automobiles were on the market. The T-CVT was made practicable in Japan in 1999 after approximately 100 years in advance of the world. Automobiles with the T-CVT have been accomplished as an integrated result of the progress of the following components: various machine elements, mechanism, design, processing technology, manufacturing technology, system control technology, material development, and traction oil development. The traction oil has an important function as one of the elements for the T-CVT unit. Its development and practical use have been the key to make T-CVT automobiles practicable. I would like to introduce out research and development of the traction oil showing the related characteristics.

著者

小貫 薫 野口 弘喜 田中 伸幸 竹上 弘彰 久保 真治

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.36, no.2, pp.80-85, 2015-02-10 (Released:2015-02-19)

参考文献数

17

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Thermochemical water-splitting process decomposes water using thermal energy by operating high temperature endothermic reaction(s) and low temperature exothermic reaction(s) cyclically, with which free energy of water decomposition is produced. The so-called sulfur family processes, which utilize thermal decomposition of sulfuric acid as the high temperature endothermic reaction, have attracted lots of interest among the many processes proposed so far. The IS process represents the pure thermochemical sulfur family processes. The continuous hydrogen production by IS process was demonstrated in laboratory, and the materials of construction for the IS process have been screened by corrosion tests performed in the severe process environment. At present, application of membrane technologies and development of catalysts are under study to improve the hydrogen production performance. Also, development is underway of the chemical reactors made of candidate materials such as ceramics.

著者

樫本 明生

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.25, no.4, pp.238-242, 2004-04-10 (Released:2008-08-12)

参考文献数

16

被引用文献数

3 2

---

The important functions for make-up foundation are 1) concealing flaws such as pores, spots and wrinkles, 2) providing a beautiful skin color and texture and 3) UV-protection. Furthermore, the foundation requires considerably long-lasting finish, smooth sensation when spreading onto skin, and so on. In recent years, various demands for these performances are greatly growing and many advanced technologies have been developed and applied to make-up cosmetic products. New technologies for make-up foundation, related to surface science and nano materialsare briefly mentioned.

著者

小島 由継

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.36, no.11, pp.583-588, 2015-11-10 (Released:2015-12-01)

参考文献数

46

被引用文献数

1 3

---

Hydrogen can be stored in many different forms as compressed or liquefied hydrogen in tanks, as a hydrogen-absorbing alloy, as metal hydrides with light elements, as organic hydrides or by adsorption on carbon materials. Ammonia has been expected as a hydrogen energy carrier because it has a high H2 storage capacity with 17.8 wt% and 10.7-12.1 kgH2/100 L. The volumetric hydrogen density is 1.5-2.5 times of liquid hydrogen, and it is easily liquefied under about 1 MPa at room temperature. Ammonia has advantages in cost and convenience as a hydrogen carrier for fuel cell vehicles, energy carrier for solid oxide fuel cell (SOFC), gas turbine of electric power plants. Current PEM fuel cells are poisoned by trace levels (> 0.1 ppm) of ammonia. After hydrogen generation by ammonia cracking, ammonia absorption materials will be useful to produce the high purity hydrogen gas.

著者

奥田 誠

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.36, no.11, pp.572-576, 2015-11-10 (Released:2015-12-01)

参考文献数

3

---

‘Liquid organic hydrides’ (such as Methylcyclohexane, generally called Organic hydrides in Japan) are in liquid form under atmospheric temperature and pressure which are able to be hydrogenated and dehydrogenated by a thermochemical process, thus allowing the storage holding high hydrogen content, carriage utilizing present oil related infrastructures (container tanks, storage tanks, filling stations) with little or no modification and production of hydrogen ‘on demand’ for fuel cell vehicles or stationary fuel cells at the point of use. The uniqueness of our mobile hydrogenation equipment is to be able to store fluctuating green hydrogen derived from renewable energy in conjunction with water electrolysis, and available to scale up its size as refinery equipment. Dehydrogenation is endothermic reaction, so our dehydrogenation reactor is designed with consideration of efficient heat transfer utilizing threefold alumite cylinders heated by oxidation reaction with a drop of Toluene (residue of dehydrogenation).

著者

Takayuki Miyamae Takashi Tokizaki

出版者

公益社団法人 日本表面科学会

雑誌

e-Journal of Surface Science and Nanotechnology (ISSN:13480391)

巻号頁・発行日

vol.11, pp.76-79, 2013-06-15 (Released:2013-06-15)

参考文献数

15

---

A near-field optical spectroscopy technique has been developed that collects the nonlinear sum-frequency signal from the surface adsorbed monolayer sample. The sum-frequency signal generated at the surface was collected with a silver-coated multi-mode fiber probe. The metal coating of the fiber effectively eliminates the far-field stray light that enters the core fiber from the outer edge, passing through the clad region. As the tip was pulled away from the sample surface, the sum-frequency signal from the GaAs crystal sample decreased rapidly with increasing tip-sample distance, indicating that the signal is essentially due to the near-field generated by the sum-frequency process. By using the metal-coated multi-mode fiber probe, information about the vibrational structure of the adsorbed molecules at the surfaces is studied. [DOI: 10.1380/ejssnt.2013.76]

著者

岩清水 晃

出版者

公益社団法人 日本表面科学会

雑誌

表面科学

巻号頁・発行日

vol.38, no.9, pp.479-480, 2017

---

南部鉄器の「南部」の名称は約四〇〇年前,南部信直公が盛岡に城を構え,藩主としてこの地を持っていたことにはじまる。南部藩主が京都から盛岡に釜師を招き茶の湯釜を作らせたといわれる。盛岡には古くから砂鉄,岩鉄などの良質な鉄資源や,川砂,粘土,漆,木炭などの原料がすべて地元で産出され,鋳物産業にはもってこいの立地条件にありそのころから鉄器が製造されてきた。守るべき伝統は守りつつ新しいことへも挑戦していく南部鉄器を紹介いたします。

著者

Yuki Nagao

出版者

公益社団法人 日本表面科学会

雑誌

e-Journal of Surface Science and Nanotechnology (ISSN:13480391)

巻号頁・発行日

vol.10, pp.229-233, 2012-06-16 (Released:2012-06-16)

参考文献数

28

被引用文献数

1 5

---

In this study, contact angle measurements and an infrared p-polarized multiple-angle incidence resolution spectrometry (p-MAIRS) technique were performed on MgO(100) and quartz substrates. The contact angle and IR spectra of the in-plane and out-of-plane vibration modes depended on the cleaning methods. The surface of the as-received substrates was contaminated in MgO(100) and quartz substrates. As determined by contact angle and p-MAIR spectra analysis, plasma treatment resulted in a relatively clean and superhydrophilic surface under atmospheric conditions. [DOI: 10.1380/ejssnt.2012.229]

著者

久保 利隆 野副 尚一

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.23, no.3, pp.149-157, 2002-03-10 (Released:2008-07-01)

参考文献数

25

---

In order to elucidate the difference of the mechanisms of imaging between scanning tunneling microscopy (STM) and non-contact atomic force microscopy (NC-AFM), the atomic structure and local physical properties of SrTiO3(100) surface were studied by using STM and NC-AFM. We theoretically simulated a model cluster with first-principles total energy calculation. Calculated density of states (DOS), work function, images for STM and NC-AFM were in good agreement with experimental data.

著者

安崎 利明

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.26, no.11, pp.700-703, 2005-11-10 (Released:2007-08-09)

参考文献数

5

被引用文献数

1

---

For large area coating of architectural glass work with excellent quality and performance of self-cleaning, the sputtering method is suitable for the thickness uniformity and the appearance. Usage of a seed layer is illustrated to form the anatase structure of TiO2. The coating shows the good photo-activity and the excellent self-cleaning performance. This seed layer effectively makes the incomparable lattice matching to the anatase TiO2. Finally, it was found that the double side sputtering with high performance LowE coating is real process when the seed layer is utilized.

著者

篠原 正

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.36, no.1, pp.4-11, 2015-01-10 (Released:2015-01-22)

参考文献数

32

被引用文献数

7

---

Many structural metallic materials are exposed to atmospheric environments. And corrosion in these environments, so called “Atmospheric Corrosion”, commonly initiates and develops under thin water films formed by dew or rain drops. A composition of water film depends on the air pollutant deposition rate, and changes with the humidity and temperature conditions of the atmosphere. Many sensors and the measurement techniques have been developed to evaluated corrosivities in atmospheric environments and corrosion behaviors in those environments. In this paper, the present state of atmospheric corrosion researches are discussed based on the roles of water and deposits and environmental factors which are evaluated by those sensors and measurement techniques.

著者

齋藤 彰 石川 陽子 宮村 友輔 十河 健司 中島 匡貴 赤井 恵 桑原 裕司 平井 義彦

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.28, no.8, pp.414-420, 2007-08-10 (Released:2007-08-18)

参考文献数

32

被引用文献数

2 1

---

The brilliant blue luster of Morpho butterflies is produced by their scale that does not contain a blue pigment. The origin of the coloration can be attributed to an optical effect on a specific nano-structure, which can explain both of the high reflectivity and the mystery that the blue appears from wide angle despite an interference effect. We have successfully reproduced the Morpho-blue by fabricating nano-structure by extracting the principles of the coloration. The reproduced Morpho-type materials are expected to serve to various industrial applications. However, the process to fabricate the nano-structure spends too much time and cost using conventional lithography. To solve this problem, nano-imprint lithography was applied to fabricate the nano-structure. As a result, Morpho-color was replicated successfully in low cost and short time. Its optical properties were estimated by optical measurements, and found to show the basic characteristics of the original Morpho-blue.

著者

橋詰 保 谷田部 然治 佐藤 威友

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.35, no.2, pp.96-101, 2014-02-10 (Released:2014-02-19)

参考文献数

13

---

Interface properties of GaN-based heterostructures have been characterized. Schottky contacts on dry-etched n-GaN layers showed leaky I-V characteristics. An anneal process at 400°C was effective in recovering the rectifying characteristics. To characterize interface properties of Al2O3 insulated gates on AlGaN/GaN structures with and without the inductively coupled plasma (ICP) etching of AlGaN, we have developed a C-V calculation method taking into account electronic state charges at the Al2O3/AlGaN interface and a photoassisted C-V technique utilizing photons with energies less than the bandgap of AlGaN. It was found that the ICP etching caused the monolayer-level interface roughness, disorder of the chemical bonds and formation of various types of defect complexes at the AlGaN surface, resulting in poor C-V characteristics due to high-density interface states at the Al2O3/AlGaN interface.

著者

西川 恵子 畠山 義清

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.34, no.4, pp.185-191, 2013-04-10 (Released:2013-04-25)

参考文献数

31

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Sputter deposition of metals into a capture medium with extremely low vapor pressure is a simple and convenient method to generate the metal nanoparticles (NPs) without chemical reactions. By careful selection of the capture medium and its temperature, the size of synthesized NPs can be controlled. Sputtering conditions also play an important role in determining the size of NPs. We synthesized Au NPs in a standard ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate by systematically varying the sputtering conditions. It is proved that the temperature of the target and applied voltages have a strong influence on the size of Au NPs, while the working distance between the target and the surface of the capture media, sputtering time, and discharge current have little or no influence. Lower temperatures of the ionic liquid and of the target and higher applied voltage are desired for generating size-controlled smaller NPs.

著者

尾澤 伸樹 石川 宗幸 中村 美穂 久保 百司

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.33, no.6, pp.351-356, 2012-06-10 (Released:2012-06-29)

参考文献数

4

被引用文献数

7 14

---

A chemical mechanical polishing (CMP) mechanism of a glass surface by a CeO2 abrasive grain under water environment has not been elucidated because the CMP process is complicated combination of chemical reactions and mechanical polishing. In this review, we introduce our successful clarification of the CMP mechanism by computational simulation methods. First, we revealed that the oxygen defects in the CeO2 abrasive grains lead to the generation of exposed Ce3+ atoms on the CeO2 surface and then the chemical reactions of the exposed Ce3+ atom and the glass surface make the elongation of Si-O bonds. We also clarified that H2O molecules react with the above elongated Si-O bonds and then the Si-O bonds are dissociated. These chemical reactions are suggested to soften the glass surface and enhance the mechanical polishing. Furthermore, according to the above clarified CMP mechanism, we succeeded to propose the design principles for the alternative materials of CeO2 abrasive grains.

著者

濱田 幾太郎 杉野 修

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.34, no.12, pp.638-643, 2013-12-10 (Released:2013-12-19)

参考文献数

38

被引用文献数

1 1

---

We describe our modeling of the electrode/electrolyte interfaces and our simulations of electrochemical reactions (electrode reactions) performed to gain molecular scale understanding of the electrode reactions. Here we focus on our recent first principles molecular dynamics simulations on the hydrogen evolution reaction at a water/platinum interface. We also discuss how to improve the present level of modeling to finally realize the comprehensive and accurate simulation.

著者

松川 宏 大槻 道夫 中野 健

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.36, no.5, pp.222-229, 2015-05-10 (Released:2015-05-26)

参考文献数

23

被引用文献数

1 1

---

It is widely believed that Amontons’ law of friction holds well in various systems. Here we show based on a numerical calculation and analytical theory that Amontons’ law breaks in viscoelastic materials under certain condition due to the precursor slip prior to the bulk sliding. It is also shown that instead of Amontons’ law new friction law holds, which states that the static friction coefficient decreases as a power functionof load with the power −1/3. The new friction law is verified by the experiment employing polymethyl-methacrylate. The relation between the critical length of the precursor and the static friction coefficient predicted by numerical calculation and analytical theory is also verified.

著者

大野 恭秀 前橋 兼三 松本 和彦

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.34, no.8, pp.426-431, 2013-08-10 (Released:2013-08-17)

参考文献数

9

被引用文献数

1

---

Chemical and biological sensors based on graphene field-effect transistors (FETs) were described. The transfer characteristics of the graphene FET were changed by the solution pH and the protein adsorption. Especially, the detection limit of the solution pH was 0.03, indicating the high sensitivity. In order to achieve the specific biomolecule sensing, aptamers were used as a receptor material. The aptamer was the single-stranded DNA binding to the specific molecules. The aptamer-modified graphene FET can detect only the target molecule while the graphene FET with the bare graphene channel detects all proteins with charges. These sensing results show that the graphene FET has high potential for the high sensitive biological sensors.

著者

森 誠之

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.32, no.5, pp.270-278, 2011-05-10 (Released:2011-05-21)

参考文献数

51

被引用文献数

1

---

Since tribology is defined as a science and technology of friction and wear between two surfaces with relative motion, tribological phenomena are closely related to surface science. Tribological behaviors are strongly affected by the surface structure of moving contacts, on the other hand, the surface structure is dynamically altering by mechanical contacts, which is very complex and dynamically changing with time. Better understanding of tribological phenomena and development of tribo-systems are deeply dependent on advancement of fundamental research which is supported by a variety of modern surface analytical tools and research techniques in surface science using ultra-high vacuum and advanced surface analytical tools. In tribological phenomena, mechanical energy is supplied to contact surfaces, and so there are many phenomena which are waiting to be studied. Fundamental understanding of tribological phenomena on the bases of surface science provides the development of tribological technologies such as friction, wear and lubrication, and then contribute to develop new tribological technologies for energy saving, eco-friendly lubrication as well as improving the efficiency, safety, reliability and life of machines.

著者

山内 淳

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.28, no.3, pp.135-143, 2007-03-10 (Released:2007-04-23)

参考文献数

14

被引用文献数

5

---

Not only limited to the first-principles calculation, but also for all simulations using computers, it must be pointed out that the output results could be calculated even from the wrong input data or/and unphysical models. Therefore it is necessary to check the calculated results carefully. In this paper, the sampled k-point, cutoff energy, and pseudopotentials are briefly explained to understand the calculational conditions systematically. Then calculated examples are shown for some typical models.