poros ceramic body - cordierite as huvudkristallfas and still for framstellning of body

摘要

1438436 Ceramics CORNING GLASS WORKS 29 Oct 1974 [5 Nov 1973] 46671/74 Heading C1J The pore size in bodies containing at least 70 vol. per cent cordierite is controlled by including in the raw mix at least one of pyrophillite 1-17%; kyanite 1-40%; quartz 1-20%; and fused silica 1-20%. At least 20% of open pores are larger than 10 Á diameter. Raw mixes described for making the cordierite comprise talc, clay and alumina.