2002 Fiscal Year Final Research Report Summary
FABRICATION AND CHARACTERIZATION OF NANO-COMPOSITE MATERIALS CONSISTING OF SOLID SOLUTION CERAMICS AS THEIR MATRICES
| Project/Area Number |
12450275
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Composite materials/Physical properties
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| Research Institution | DOSHISHA UNIVERSITY |
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Principal Investigator |
YAMAGUCHI Osamu Faculty of Engineering, Doshisha University, Professor, 工学部, 教授 (40097861)
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| Co-Investigator(Kenkyū-buntansha) |
HIROTA Ken Faculty of Engineering, Doshisha University, Professor, 工学部, 教授 (30238414)
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| Project Period (FY) |
2000 – 2002
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| Keywords | Solid Solution Ceramics / Nano-structure / High-pressure sintering / Self-propagating High-temperature Synthesis (SHS) / Spark Plasma Sintering / Chromium Oxide / Molybdenum Silicide / α-Titanium solid solution |
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| Research Abstract |
In this research, several kinds of inorganic monolithic and/or composite materials with high densities have been fabricated using self-propagating high-temperature synthesis Sol-gel derived ZrO_2/Al_2O_3 solid solution powders were sintered under uniaxial high-pressure of 1 Gpa. Intermetallic MoSi_2 prepared by SHS was densified to 98% of theoretical by SPS. Poor-sinterable Cr_2O_3 was consolidated without and with nanometer-size additives (W and Mo particles) via a high-pressure sintering method, SPS, and HIP, respectively. They were evaluated from points of view of mechanical properties in relations to their micro- or nano-structures.
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