Boron carbide (usoro kemịkalụ B4C) bụ ihe seramiiki siri ike nke a na-eji na ngwa agha tankị, akwa mkpuchi mgbọ na ọtụtụ ngwa ụlọ ọrụ.Ike Mohs ya bụ 9.3, ọ bụkwa ihe nke ise kachasị sie ike mara mgbe diamond, cubic boron nitride, ogige fullerene na tubes monolithic diamond.

Njirimara nke B4C

1) Ọrụ kachasị mkpa nke boron carbide dị na ike ya pụrụ iche (Mohs hardness of 9.3), nke bụ nke abụọ na diamond na cubic boron nitride, ma bụrụ ihe kachasị mma na-eguzogide okpomọkụ;

(2) Njupụta nke boron carbide dị ntakịrị, nke kachasị mfe n'etiti ihe seramiiki ma nwee ike iji ya mee ihe na mbara igwe;

(3) boron carbide nwere ikike nnabata neutron siri ike.E jiri ya tụnyere ihe dị ọcha B na Cd, ọ nwere ọnụ ala dị ala, ezigbo nguzogide corrosion na ezigbo nkwụsi ike ọkụ.A na-ejikarị ya eme ihe na ụlọ ọrụ nuklia.Boron carbide nwere ezigbo ikike nnabata neutron.Nkwalite ọzọ site n'ịgbakwunye B element;

(4) Boron carbide nwere ezigbo kemịkalụ Njirimara.Ọ naghị emeghachi omume na acid, alkalis na ọtụtụ ogige inorganic na ụlọ okpomọkụ.Ọ na-emebi naanị nwayọọ nwayọọ na ngwakọta nke hydrofluoric acid-sulfuric acid na hydrofluoric acid-nitric acid.Ọ bụ kemịkalụ kacha kwụsie ike.Otu n'ime ogige;

(5) boron carbide nwekwara uru nke ebe mgbaze dị elu, modul na-agbanwe dị elu, ọnụọgụ mgbasawanye dị ala na ikike nnabata oxygen dị mma;

(6) boron carbide bụkwa ihe p-ụdị semiconductor, nke nwere ike idowe njirimara semiconductor ọbụlagodi na oke okpomọkụ.