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Nā huahana

helehelena ʻEleʻele-ʻeleʻele
Pae ma STP Paʻa
Kiko heheʻe 2349 K (2076 °C, 3769 °F)
Kikowaena paila 4200 K (3927 °C, 7101 °F)
Ka nui o ka paʻa i ka wā wai (ma mp) 2.08 g/cm3
Ka wela o ka hoʻoheheʻe ʻana 50.2 kJ/mol
Ka wela o ka mahu 508 kJ/mol
Ka mana wela molar 11.087 J/(mol·K)
  • ʻO Boron Carbide

    ʻO Boron Carbide

    ʻO Boron Carbide (B4C), i ʻike ʻia hoʻi he daimana ʻeleʻele, me ka paʻakikī Vickers o >30 GPa, ʻo ia ke kolu o ka mea paʻakikī loa ma hope o ke daimana a me ka cubic boron nitride. Loaʻa i ka Boron carbide kahi ʻāpana keʻa kiʻekiʻe no ka omo ʻana 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 he nui 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 keramika.

    He mea koʻikoʻi ka boron carbide me ka māmā a me ka ikaika mechanical maikaʻi loa. He kiʻekiʻe ka maʻemaʻe o nā huahana a UrbanMines a me nā kumukūʻai hoʻokūkū. Loaʻa iā mākou ka ʻike nui i ka hoʻolako ʻana i nā huahana B4C like ʻole. 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.