초록 ▼

Cloth is coated at a temperature below about 1000°C. with amorphous boron-carbon deposits in a process which provides a substantially uniform coating on all the filaments making up each yarn fiber bundle of the cloth. The coated cloths can be used in the as-deposited condition for example as wear su

Cloth is coated at a temperature below about 1000°C. with amorphous boron-carbon deposits in a process which provides a substantially uniform coating on all the filaments making up each yarn fiber bundle of the cloth. The coated cloths can be used in the as-deposited condition for example as wear surfaces where high hardness values are needed; or multiple layers of coated cloths can be hot-pressed to form billets useful for example in fusion reactor wall armor. Also provided is a method of controlling the atom ratio of B:C of boron-carbon deposits onto any of a variety of substrates, including cloths.

대표청구항 ▼

A method of coating graphite cloth with a coating of amorphous boron carbide which is substantially uniform on all filaments throughout each yarn bundle of said cloth, said method comprising: contacting said graphite cloth with a mixture of BCl3, at least one hydrocarbon selected from the group cons

A method of coating graphite cloth with a coating of amorphous boron carbide which is substantially uniform on all filaments throughout each yarn bundle of said cloth, said method comprising: contacting said graphite cloth with a mixture of BCl3, at least one hydrocarbon selected from the group consisting of propene and methane, and hydrogen at a coating temperature within the range from about 850°to about 900°C. and at a total pressure within the range from about 15 torr to about 35 torr.