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High-toughness ceramic matrix composite and preparing method and application thereof
The invention belongs to the technical field of production of ceramic components and discloses a high-toughness ceramic matrix composite and a preparing method and application thereof. The high-toughness ceramic matrix composite comprises a fine-grain ceramic phase as base and at least one of intermetallic compounds, TiAl, Ti2AlNb and Ti3aL, as a diffuse enhancement phase. The production method includes: matching Ti, Al, Nb and other trace components according to a designed atomic percent, charging them into a ball mill for ball milling to obtain an amorphous TiAlNb-base powder; ball-milling and mixing the amorphous TiAlNb-base powder and pure TiB2 powder in a ball mill to obtain amorphous mixed powder evenly distributed; charging the amorphous mixed powder into a mold, and sintering the amorphous mixed powder with a sintering apparatus to obtain the high-toughness TiB2 ceramic matrix composite. By using the amorphous TiAlNb-base powder as sintering aid, the high-toughness ceramic matrix composite produced has excellent comprehensive mechanical properties and promising application prospect.
High-toughness ceramic matrix composite and preparing method and application thereof
The invention belongs to the technical field of production of ceramic components and discloses a high-toughness ceramic matrix composite and a preparing method and application thereof. The high-toughness ceramic matrix composite comprises a fine-grain ceramic phase as base and at least one of intermetallic compounds, TiAl, Ti2AlNb and Ti3aL, as a diffuse enhancement phase. The production method includes: matching Ti, Al, Nb and other trace components according to a designed atomic percent, charging them into a ball mill for ball milling to obtain an amorphous TiAlNb-base powder; ball-milling and mixing the amorphous TiAlNb-base powder and pure TiB2 powder in a ball mill to obtain amorphous mixed powder evenly distributed; charging the amorphous mixed powder into a mold, and sintering the amorphous mixed powder with a sintering apparatus to obtain the high-toughness TiB2 ceramic matrix composite. By using the amorphous TiAlNb-base powder as sintering aid, the high-toughness ceramic matrix composite produced has excellent comprehensive mechanical properties and promising application prospect.
High-toughness ceramic matrix composite and preparing method and application thereof
YANG CHAO (author) / YAO YUANPENG (author) / GUO HAO (author) / QU SHENGGUAN (author) / LI XIAOQIANG (author) / CHEN WEIPING (author)
2015-10-07
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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