Kev siv dav ntawm cov graphene dawb - cov khoom siv raw rau kev sib txuas ntawm cubic boron nitride

Hexagonal boron nitride yog ib qho ntawm cov khoom siv raw rau kev tsim cov cubic boron nitride. Nyob rau hauv qhov ntau ntawm siab ntawm 3000-8000 MPa thiab kub ntawm 800-1900 degree, cov tshuaj tiv thaiv ntawm hexagonal boron nitride thiab catalyst nyob rau hauv qhov kub thiab txias siab yuav hloov mus rau hauv cubic nitride. Boron ib leeg siv lead ua.

Lub cubic boron nitride yog superhard inorganic cov khoom siv dag zog ua ke tom qab pob zeb diamond dag. Nws hardness yog thib ob tsuas yog cov pob zeb diamond. Lub cubic boron nitride muaj thermal stability zoo dua li pob zeb diamond thiab tshuaj inertness rau hlau pawg hlau. Nws yog haum rau machining ob qho tib si tawv thiab tawv cov ntaub ntawv. Kev siv cov cubic boron nitride rau machining tuaj yeem tsis tsuas yog txhim kho cov khoom tsim tau, nruj me ntsis tswj cov duab thiab qhov tseeb ntawm lub workpiece, tab sis kuj tseem txhim kho kev sib tsoo zoo ntawm lub workpiece thiab txhim kho qhov kev ncaj ncees ntawm lub workpiece tom qab sib tsoo. Tam sim no, cubic boron nitride abrasive cov cuab yeej thiab cov hniav yog dav siv nyob rau hauv ntau yam xws li geological kev tshawb fawb, roj drilling, pob zeb, machinery, tsheb thiab lub teb chaws tiv thaiv kev lag luam.