- 著者
 
          - 
             
             大塚 愛子
             
             川崎 亮
             
             渡辺 龍三
             
             厳 泰永
             
          
 
          
          
          - 出版者
 
          - Japan Society of Powder and Powder Metallurgy
 
          
          
          - 雑誌
 
          - 粉体および粉末冶金 (ISSN:05328799)
 
          
          
          - 巻号頁・発行日
 
          - vol.45, no.3, pp.220-224, 1998-03-15 
 
          
          
          - 参考文献数
 
          - 7
 
          
          
          - 被引用文献数
 
          - 
             
             3
             
             
             12
             
             
          
        
 
        
        
        Disk-shaped functionally graded materials of copper/alumina system have been fabricated by spark plasma sintering(SPS process. The graded layer consists of symmetrical compositional transition of Cu/Al<SUB>2</SUB>O<SUB>3</SUB>/Cu, which allows to achieve high heat conduction, electrical insulation and excellent in-plane electrical conductivity. The use of the FGMs as a compliant pad of conduction type of thermoelectric power conversion system offers high thermal energy density through the thermoelectric cell, resulting in the increase of the efficiency of thermoelectric energy conversion.<BR>This paper describes the process optimization including densification of metal-ceramic powder mixtures by SPS process, compositionally graded stacking of the mixed powders in a graphite die, the design of the compositional gradient on the basis of one dimensional heat conduction analysis and fabrication of Cu/Al<SUB>2</SUB>O<SUB>3</SUB>/Cu FGMs according to the predesigned compositional gradient.