In‐Situ窒化反応法を利用したAl‐AlN複合焼結材料の機械的特性および摩擦摺動特性

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タイトル別名
  • Mechanical and Wear Properties of In-Situ Directly Nitrided Sintered Al-AlN Composite Material.
  • In-Situ チッカ ハンノウホウ オ リヨウ シタ Al-AlN フクゴウ ショウケツ ザイリョウ ノ キカイテキ トクセイ オヨビ マサツ シュウドウ トクセイ

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In-Situ directly nitrided and sintered AI-AIN composite material has been developed by utilizing a chemical reaction between aluminum and nitrogen gas at temperatures below 823K. It shows superior mechanical properties to those of conventionally premixed and sintered AI-AIN composite. It is primarily due to good bonding of the in-situ formed AIN to the matrix. The advanced P/M aluminum alloy shows an extremely low friction coefficient, such as 0.004 to 0.008 under oil lubrication. It also has excellent wear resistance and anti-seizure property compared to I/M aluminum alloys with hard anodized plating. This is because micro oil grooves existing along in-situ formed AIN seems to work as oil pits and make it easy to keep hydraulic lubrication with thin oil films on the sliding surface.

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