Boron carbide (chilinganizo chamankhwala B4C) ndi chinthu cholimba kwambiri cha ceramic chomwe chimagwiritsidwa ntchito popanga zida zankhondo, zovala zoteteza zipolopolo ndi ntchito zambiri zamafakitale.Kuuma kwake kwa Mohs ndi 9.3, ndipo ndi chinthu chachisanu chodziwika bwino pambuyo pa diamondi, cubic boron nitride, mankhwala a fullerene ndi machubu a diamondi monolithic.

Zithunzi za B4C

1) Ntchito yofunikira kwambiri ya boron carbide ili mu kuuma kwake kodabwitsa (kuuma kwa Mohs kwa 9.3), komwe kumakhala kwachiwiri kwa diamondi ndi kiyubiki ya boron nitride, ndipo ndi chinthu choyenera kwambiri chosamva kutentha kwapamwamba;

(2) Kachulukidwe wa boron carbide ndi wochepa kwambiri, womwe ndi wopepuka kwambiri pakati pa zida za ceramic ndipo ungagwiritsidwe ntchito m'munda wazamlengalenga;

(3) Boron carbide ili ndi mphamvu yoyamwa ya neutroni.Poyerekeza ndi zinthu zoyera B ndi Cd, ili ndi mtengo wotsika, kukana kwa dzimbiri komanso kukhazikika kwamafuta.Amagwiritsidwa ntchito kwambiri m'makampani a nyukiliya.Boron carbide ili ndi mphamvu yabwino yoyamwa neutroni.Kuwongolera kwina powonjezera gawo la B;

(4) Boron carbide ili ndi mankhwala abwino kwambiri.Sichimachita ndi zidulo, alkalis ndi mankhwala ambiri osakanikirana ndi kutentha.Zimangowonongeka pang'onopang'ono mu chisakanizo cha hydrofluoric acid-sulfuric acid ndi hydrofluoric acid-nitric acid.Ndilo mankhwala okhazikika kwambiri.Chimodzi mwazophatikiza;

(5) Boron carbide imakhalanso ndi ubwino wa malo osungunuka kwambiri, modulus yotanuka kwambiri, coefficient yochepetsera yowonjezera komanso mphamvu yabwino yoyamwa mpweya;

(6) Boron carbide imakhalanso p-mtundu wa semiconductor zakuthupi, zomwe zimatha kukhalabe ndi mawonekedwe a semiconductor ngakhale kutentha kwambiri.