1989 Volume 75 Issue 9 Pages 1526-1533
The modified potassium titanate whisker being stabler at higher temperature was developed recently. This whisker was only composed of K2O· 6TiO2 which free from other chemical constitutions and, was used to make the preform with addition of small amount of inorganic binder. This preform was infiltrated aluminum alloy(AC4C) by squeeze casting, and the dimentional change of the composite was very small. Therefore, the K2O· 6TiO2 whisker reinforced aluminum alloy composite with lower volume fraction of the whisker could be fabricated without large deformation and distortion. Some properties of the composites were investigated. Tensile and hardness tests, measurment of elastic modulus, damping capacity, thermal expansion and thermal analysis were carried out. In particular, it was found that this whisker began to react with aluminum over about 1 123 K.
