| 摘要 |
PURPOSE:To enhance not only surface hardness but also strength, by molding a stock powder, which is formed by compounding 2-40wt% of potassium titanate fiber with fiber length of 10-50mum with polyamide resin powder into a green compact and sintering said green compact to form a porous body with porosity of 15-40%. CONSTITUTION:A stock powder, which is formed by compounding 2-40wt% of potassium titanate fiber with the fiber length of 10-50mum with polyamide resin powder, is molded into a green compact which is, in turn, sintered to obtain a porous body with porosity of 15-40%. That is, the stock powder formed by compounding 20wt% of the potassium titanate fiber with a nylon 6 resin powder is molded into the green compact under pressure of 800-900kg/cm<2> according to a usual method while the obtained green compact is sintered at 255 deg.C for 60min in a nitrogen stream as a non-oxidative atmosphere to obtain the porous body with a void ratio of 25-35%. |
