| Autor: |
Y. Uchida, Niichi Hayashi, Y. Murakami, D. Dykes, K. Taka, T. Imura, Shigeo Watanabe, S. Higa, T. Ishikura |
| Rok vydání: |
1997 |
| Předmět: |
|
| DOI: |
10.1016/b978-044482548-3/50057-3 |
| Popis: |
Recently, with advances in technology, materials for the construction of machinery are now being utilized in various kinds of severe environment. It is in order to cope with difficulties of this kind that recourse to “functionally graded materials” (FGMs) has been proposed in Japan. However, although various techniques are currently available for the manufacture of FGMs, it is very difficult to produce FGMs of the greater thickness widely required in manufacturing industry. This paper attempts to present a method of production for FGMs by means of an expression operation resulting in a mechanical separation of solids and liquids, using the two processes vacuum filtration and expression consolidation. It examines how this expression technology can be used to produce FGMs of greater thickness more simply and cheaply than has hitherto been possible. In this way, compressed FGM cakes materials could be manufactured using ZrO 2 as the ceramic material and stainless steel powder as the metallic material. FGM cakes produced in this way were air dried and then baked in an electrically powered reducing furnace. FGM cakes produced in the above described way observed the case that it use an addition agent and an effect of the graded layer steps and an effect by the thickness of it. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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