Hafnia modified alumina fibers
Halide glass
Halogen glasses modified with carbon disulphide and process of p
Halogen-resistant media
Halogen-resistant media
Halogenated glasses
Hard and tough sintered body
Hard film for cutting tools, cutting tool coated with hard...
Hard sintered body for tool
Hard sintered body for tools
Hard tissue substitute composition
Hardened alumina material
Hardening of fusible polysilazanes and SiC/Si.sub.3 N.sub.4 cera
Heat conductive colored aluminum nitride sintered body
Heat conductive material
Heat resistant glass fiber composition
Heat resistant materials containing ceramic components
Heat resisting low expansion zirconyl phosphate-zircon composite
Heat resistive phosphate sintered bodies and a process for produ
Heat resistive phosphate-zircon composite bodies and process for