Pehea ka nui o kāu ʻike e pili ana i ka graphite

ʻO ka graphite kekahi o nā minela palupalu loa, he allotrope o ka carbon elemental, a me ka mineral crystalline o nā mea kalapona. ʻO kona ʻano crystalline he ʻano papa hexagonal; ʻO ka mamao ma waena o kēlā me kēia papa mesh he 340 ʻili. m, ka spacing o carbon atoms i loko o ka pae pūnaewele like he 142 picometers, no ka hexagonal kristal nenoaiu, me ka piha layered cleavage, ka cleavage ili ua hoomaluia e molecular paʻa, a me ka attraction i nā molekele ua nāwaliwali, no laila, kona floatability maoli. maikaʻi loa; ua hoʻohui ʻia ka ʻaoʻao o kēlā me kēia ʻātoma kalapona i ʻekolu mau ʻātoma kalapona ʻē aʻe ma o ka hoʻopaʻa ʻana i ka covalent e hana i kahi mole kalapona; no ka mea e hoʻopuka ana kēlā me kēia kalapona kalapona i kahi electron, hiki i kēlā mau electrons ke neʻe manuahi, no laila ʻo ka graphite he conductor, Hoʻohana ʻia ka graphite i ka hana ʻana i nā alakaʻi penikala a me nā lubricants, a me nā mea ʻē aʻe.

Paʻa loa nā waiwai kemika o ka graphite, no laila hiki ke hoʻohana ʻia ka graphite e like me ke alakaʻi penikala, pigment, polishing agent, etc., a hiki ke mālama ʻia nā huaʻōlelo i kākau ʻia me ka graphite no ka manawa lōʻihi.
Loaʻa i ka Graphite nā waiwai o ka pale wela kiʻekiʻe, no laila hiki ke hoʻohana ʻia ma ke ʻano he mea refractory. No ka laʻana, hana ʻia nā crucibles i hoʻohana ʻia i ka ʻoihana metallurgical me ka graphite.
Hiki ke hoʻohana ʻia ka graphite ma ke ʻano he mea conductive. No ka laʻana, ʻo nā koʻokoʻo kalapona i loko o ka ʻoihana uila, nā electrodes maikaʻi o nā mea hana maikaʻi o ka mercury, a me nā pulupulu i hana ʻia me ka graphite.


Ka manawa hoʻouna: Mei-11-2022