malalo1

Nā huahana

Ka nana aku ʻeleʻele-ʻeleʻele
Hana ma STP Paʻa
Lae hehee 2349 K (2076 °C, 3769 °F)
Lae paila 4200 K (3927 °C, 7101 °F)
ʻO ka mānoanoa i ka wai (ma mp) 2.08 g/cm3
Ka wela o ka hui ʻana 50.2 kJ/mol
Ka wela o ka mahu 508 kJ/mol
Ka hiki wela molar 11.087 J/(mol·K)
  • Boron Carbide

    Boron Carbide

    ʻO Boron Carbide (B4C), i ʻike ʻia he daimana ʻeleʻele, me ka paʻakikī Vickers o >30 GPa, ʻo ia ke kolu o ka mea paʻakikī ma hope o ke daimana a me ka cubic boron nitride. He pauku kea kiʻekiʻe ka Boron carbide no ka absorption o nā neutrons (ʻo ia hoʻi nā waiwai pale maikaʻi e kūʻē i nā neutrons), kūpaʻa i ka radiation ionizing a me ka hapa nui o nā kemika. He mea kūpono ia no nā noi hana kiʻekiʻe ma muli o kona hui pū ʻana o nā waiwai. ʻO kona paʻakikī koʻikoʻi e lilo ia i pauka abrasive kūpono no ka lapping, polishing a me ka ʻoki ʻana i ka wai o nā metala a me nā seramika.

    He mea koʻikoʻi ka Boron carbide me ka māmā māmā a me ka ikaika mechanical. Loaʻa i nā huahana UrbanMines ka maʻemaʻe kiʻekiʻe a me nā kumukūʻai hoʻokūkū. Loaʻa iā mākou ka ʻike nui i ka hoʻolako ʻana i nā ʻano huahana B4C. Manaʻolana hiki iā mākou ke hāʻawi i nā ʻōlelo aʻoaʻo kōkua a hāʻawi iā ʻoe i kahi ʻike maikaʻi o ka boron carbide a me kāna mau hoʻohana like ʻole.