SiC whisker

Product name:SiC whisker

Product Description:Silicon carbide whiskers useful for reinforcement of metals are manufactured from SiO2 and carbon. Rice hulls are ashed in air at approximately 620° C. to obtain amorphous SiO2, which is then blended with fine particle size carbon. The mixture is rapidly heated under CO atmosphere to 1500° C., and when the temperature reaches that point the CO atmosphere is flushed with argon, the SiC whiskers forming in the argon atmosphere. The product is purified by ashing in air to remove excess carbon and/or washed with HF to remove unreacted SiO2.