著者

竹村 謙一

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.2, no.1, pp.84-85, 1993

被引用文献数

2

---

Recent development of the diamond-anvil-cell technology has made it possible to generate ultrahigh pressures exceeding 100GPa with the use of the beveled diamond anvils. Since the sample size for such studies decreases to about 50μm, it requires special devices and techniques for the sample preparation like a microdrilling machine.

著者

後藤 元信

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.25, no.3, pp.234-238, 2015 (Released:2015-09-17)

参考文献数

19

---

Extraction processes using pressurized fluid of mixture of carbon dioxide and water or organic solvent are reviewed. Gas-expanded liquid has been used for separation and material processing where liquid solvent is expanded by dissolving carbon dioxide at high pressure. Hybrid process using multi-phase fluid of liquid and supercritical fluid is developed and applied to natural material extraction.

著者

榮永 茉利

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.31, no.2, pp.112-121, 2021 (Released:2021-10-27)

参考文献数

42

---

The recent collaboration between theory and experiment has led to the discovery of high-Tc superconductive hydrogen dominant compounds under ultra-high pressure over one million atmospheres which can be attained by the recent advances in technology using diamond anvil cell. Although there are still various difficulties in measuring the physical properties of materials under ultra-high pressure, high-pressure is expected as an important parameter for development of novel functional materials and search for physical properties, which cannot be realized at ambient pressure. In this article, I review the recent results on the search for pressure-induced superconductivity in sulfur hydride system.

著者

井上 徹

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.14, no.3, pp.242-247, 2004 (Released:2004-12-10)

参考文献数

26

被引用文献数

2 2

---

Water is the most abundant volatile component on the Earth's surface, and it is important to clarify the water distribution in the Earth's interior because water influences the physical properties and melting temperature of minerals. Here the author reviews our recent works about the H2O partitioning among high-pressure polymorphs of olivine. Based on the partitioning results combining with the seismological constraint, the author discusses the amount of water distribution in the Earth's interior.

著者

崔 亨波 Alimamy Forkie BANGURA 加藤 礼三

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.25, no.4, pp.292-297, 2015 (Released:2016-01-08)

参考文献数

14

---

In this article, a modified technique using diamond anvil cell (DAC) for four-probe resistivity measurement is introduced. The full detail of sample mounting technique in a DAC is described. We performed high-pressure transport measurements for a Mott insulator β′-ET2ICl2 up to 12 GPa. By comparing the result obtained by the cubic anvil cell measurement, we proved that a choice of small culet size, small samples, and encapsulating the sample provides high quality hydrostatic pressure in DAC.

著者

松岡 岳洋

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 = The Review of high pressure science and technology (ISSN:0917639X)

巻号頁・発行日

vol.21, no.1, pp.44-45, 2011-02-20

著者

野口 琢史

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.19, no.4, pp.275-280, 2009 (Released:2009-12-02)

参考文献数

9

被引用文献数

1 1

---

Such as high pressure machine, it has image difficult to use and dangerous in generally, dose not gain in popularity. In particular over 100 MPa, that is the filed of super high-pressure, there were still many researches carried out on the super high-pressure, however there were few products that is commodification in the world. In this paper, developing machine is easy to use the super high-pressure and technology is utilized super high-pressure of the versatility, therefore commodification shows several possible of super high-pressure.

著者

前川 明紀

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.29, no.1, pp.16-21, 2019 (Released:2019-04-10)

参考文献数

4

---

The study of high-pressure processing (HPP) technology started in Japan in the 1980s as a non-thermal pasteurization method and practical applications have since been developed. However, HPP technology was not popular then. These days it is getting more popular among Japanese food companies, so to meet the demand we developed horizontal cold isostatic pressing (CIP) equipment called ‘FOOD FRESHER’ based on our knowledge of making high pressure equipment for more than 50 years. This paper describes the recent trends in the HPP market and the specifications of FOOD FRESHER both as it is now, and as it will be in the future.

著者

佐野 亜沙美 伊藤 正一 鈴村 明政 上野 雄一郎 八木 晃 井上 徹 川添 貴章

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.30, no.2, pp.85-94, 2020 (Released:2020-10-23)

参考文献数

39

---

Minerals and rocks exhibit various isotope compositions depending on their origins and histories. In interpreting their isotopic variations, the equilibrium isotope fractionation factor is a key because it depends on the environment parameters such as temperature. Recent studies have shown that the effect of pressure on the isotope fractionation, which was considered negligible compared to temperature, is significant under the conditions of the Earth's interior. In this article we review recent advances in experimental studies to determine the isotope fractionation of iron and hydrogen at high pressure over several GPa, discussing their issues and future perspectives.

著者

小林 寿夫

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.23, no.3, pp.260-267, 2013 (Released:2013-09-26)

参考文献数

13

---

The nuclear resonant scattering and Mössbauer spectroscopy are going to be the experimental technique to investigate the element-specific electronic and vibrational properties in materials under multi-extreme conditions by using synchrotron radiation as an excitation source for a Mössbauer isotope. In this article, I introduced the basic principles of nuclear resonant scattering and Mössbauer spectroscopy and reviewed these current statuses in material science. Finally, I described future prospects of these methods using shorter-pulsed structure and higher-brilliance Xrays from new-generation synchrotron radiation facilities.

著者

梅本 幸一郎

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.27, no.3, pp.205-212, 2017 (Released:2017-10-06)

参考文献数

25

---

In this article, we review a series of first-principles studies of phase transitions in earth/planet-forming materials under ultrahigh pressure which corresponds to deep interiors of super-Earths and is difficult to be achieved by diamond-anvil-cell experiments. As examples, we discuss dissociations of MgSiO3 post-perovskite and novel crystalline phases of SiO2 and Al2O3 under ultrahigh pressures. The methods shown in this article are general and can be applied to any structural phase transitions.

著者

栗田 伸之

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.17, no.4, pp.347-351, 2007-11-20 (Released:2007-12-23)

参考文献数

13

---

In this article, the contents of my doctoral thesis are briefly reviewed. I have developed 10 GPa class micro diamond anvil cell (DAC) in order to investigate high-pressure effect on filled skutterudite compounds. In addition, a way of setting up for high-pressure resistivity measurements using a four-probe method was established. Here, I focus on the heavy fermion superconductor PrOs4Sb12 and present pressure and magnetic field effects on the electrical resistivity by using the newly developed DAC with pressures up to 10 GPa.

著者

三島 修

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.17, no.4, pp.352-356, 2007-11-20 (Released:2007-12-23)

参考文献数

21

被引用文献数

2 1

---

According to the liquid-liquid critical point hypothesis of water, liquid water separates into low- and high-density liquid phases at low temperature and high pressure, and these liquid phases become the known low- and high-density amorphous ices below their glass transition temperatures. An accumulation of experimental and theoretical results seems to support this hypothesis, and this hypothesis may virtually explain "the mysteries of water" including the density maximum at 277 K. Aqueous solutions and the confined water appear to be readily interpreted on the hypothesis.

著者

佐藤 春樹

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.15, no.3, pp.183-190, 2005 (Released:2005-10-11)

参考文献数

47

被引用文献数

1

---

Thermodynamic properties such as density, heat capacities, speed of sound, enthalpy, entropy, and other properties, can be calculated from a single thermodynamic equation of state in the case of pure fluids. Equation of state representing Helmholtz free energy provides those property values accurately in wide gaseous, liquid, and supercritical phases even at high temperatures and pressures by only differential procedures, which is sometimes called as fundamental equation of state. For many important fluids like water, air, carbon dioxide, ammonia, methane, isobutane, methanol, and hydrofluorocarbons (HFCs), the fundamental equations of state have already been established. This article introduces these fundamental equations of state and the background of them. Some latest aspects obtained in our group on thermodynamic equations of state are also introduced.

著者

角谷 均

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.19, no.4, pp.264-269, 2009 (Released:2009-12-02)

参考文献数

18

被引用文献数

1 2

---

Recent progress of the technology of large-scale high pressure apparatus have permitted us to produce synthetic diamond powders in larger quantities at a lower cost. The advances in high-pressure and high-temperature control technique have enabled the commercialization of high-purity large synthetic diamond crystals. In this article, recent advances and future prospects in the high-pressure apparatus technology for synthetic diamonds are described.

著者

亀川 厚則 岡田 益男

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.17, no.2, pp.173-179, 2007 (Released:2007-07-06)

参考文献数

48

被引用文献数

10 14

---

First of all, hydrogen energy related government budgets in Japan, USA and EU were summarized. Among a number of required technology to introduce hydrogen society, the hydrogen storage technique was focused in this article. The technique is classified in three ways, such as pressurized hydrogen, liquid hydrogen and hydrogen storage medium tank. In each technique, the high pressure science and technology is important to materialize applications of hydrogen storage systems. In addition, the recent research of new hydrides prepared by autoclave synthesis and high-pressure work in solid-state was also mentioned.

著者

芳野 極

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.29, no.2, pp.94-102, 2019 (Released:2019-07-18)

参考文献数

31

---

Knowledge of distribution and transport mechanism of melt in the Earth and planetary interiors is important for understanding formation process of stratified structure, estimation of melt fraction in partial molten region, and volatile recycling. In this article, advances in high pressure studies on melt distribution and its transport process were reviewed in terms of surface tension-driven process. Melt migration in solid media is controlled by melt connectivity. A traditional way to determine melt connectivity is determination of dihedral angle by quench experiments. Recently, in situ X-ray radiographic observation or electrical conductivity measurement are developing as effective ways to determine melt morphology. At the end of this article, an example of melt penetration experiments is reported. High pressure experiments on penetration of metallic iron alloy melt into lower mantle phases suggest absence of interaction between core and mantle by surface-tension driven penetration mechanism.

著者

中西 剛司 一ノ瀬 幸裕 窪 誠也

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.20, no.4, pp.377-381, 2010 (Released:2010-12-11)

参考文献数

10

---

We describe a simple setup to observe H2O ice VI single crystals under high pressure by using transparent Bridgman anvils with a compact hydraulic oil cylinder. It is confirmed that growth and melting of the ice VI single crystal was clearly observed as reported in diamond anvil cell experiments. Furthermore, this setup allows students starting to learn high pressure experiments to understand the opposed anvil technique because the anvils are not only easy to manipulate but also visible even when pressure is generated.

著者

和田 光平

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.28, no.1, pp.9-16, 2018 (Released:2018-05-23)

参考文献数

11

被引用文献数

4

---

Tungsten carbide based hardmetals have been used for the cylinders and anvils of high pressure apparatus, because of their high hardness, compressive strength and Young's modulus. In this article, tungsten carbide based hardmetals used for each high pressure apparatus are reviewed. In addition, newly developed ultra-fine grained binderless hardmetal TJS01 is introduced.

著者

細見 暁

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.1, no.2, pp.143-146, 1992

被引用文献数

1

---

Very soon after their production was started, Komatsu Diamond Co. recieved, in June 1963, a letter from GE warning of possible infringement on their registered patent rights. This was the kickoff of a years long series of law suits between the two parties. Upon the registration of their “belt” apparatus patent in 1964, GE lodged, unsuccessfully, an application for a provisional court order to prohibit Komatsu's use of the brand-new apparatuses. The definitive proceedings began in late 1965, and legal inspectors came to the plant for the first time in 1966. The point of dispute was based on the difference in interpretation of the function of, particularly, the die lined with the ceramic sleeve.