beri1

Ngwaahịa

Ọdịdị Oji-aja aja
Usoro na STP siri ike
Ebe mgbaze 2349 K (2076 Celsius, 3769 Celsius)
Ebe esi nri 4200 K (3927 Celsius, 7101 Celsius)
Njupụta mgbe mmiri mmiri (na mp) 2.08 g/cm3
Okpomọkụ nke ngwakọta 50.2 kJ / mol
Okpomọkụ nke vaporization 508 kJ / mol
Ike okpomọkụ molar 11.087 J/ (mol·K)
  • Ọkpụkpụ boron carbide

    Ọkpụkpụ boron carbide

    Boron Carbide (B4C), makwaara dị ka diamond ojii, nke nwere ike siri ike nke Vickers> 30 GPa, bụ ihe nke atọ kachasị sie ike na-esote diamond na cubic boron nitride. Boron carbide nwere akụkụ obe dị elu maka nnabata nke neutrons (ya bụ ezigbo ihe nchebe megide neutron), nkwụsi ike na radieshon ionizing na ọtụtụ kemịkalụ. Ọ bụ ihe kwesịrị ekwesị maka ọtụtụ ngwa arụmọrụ dị elu n'ihi nchikota mara mma ya. Isi ike ya pụtara ìhè na-eme ka ọ bụrụ ntụ ntụ abrasive kwesịrị ekwesị maka ịcha akwa, polishing na ịcha ụgbọ elu mmiri nke ọla na seramiiki.

    Boron carbide bụ ihe dị mkpa nke nwere ike dị fechaa na nnukwu igwe. Ngwaahịa UrbanMines nwere ịdị ọcha dị elu yana ọnụ ahịa asọmpi. Anyị nwekwara ahụmịhe dị ukwuu n'inye ngwaahịa B4C dị iche iche. Enwere m olileanya na anyị nwere ike ịnye ndụmọdụ na-enye aka ma nye gị nghọta ka mma banyere boron carbide na ojiji dị iche iche.