apo hoopa'a SiC

wehewehe:

Loaʻa i ka Silicon Carbide ka waiwai o ka maikaʻi kūʻokoʻa-corrosion, kiʻekiʻe mechanical ikaika, kiʻekiʻe thermal conductivity, maikaʻi pono lubrication i hoʻohana ʻia e like me nā maka sila, nā bearings a me nā paipu i ka spacecraft, machinery, metallurgy, paʻi a me ke kala, meaʻai, lāʻau lapaʻau, ʻoihana kaʻa a pēlā aku. ma. Ke hui pū ʻia nā maka sic me nā maka graphite ʻo ka friction ka mea liʻiliʻi loa a hiki ke hana ʻia i mau sila mechanical i hiki ke hana i nā koi hana kiʻekiʻe.

ʻO nā ʻano kumu kumu Silicon Carbide:

-haʻahaʻa haʻahaʻa

-ʻO ka hana wela wela kiʻekiʻe (kokoke i ka alumini)

-Kūleʻa haʻalulu wela maikaʻi

-Paʻa wai a me ke kinoea

-ʻO ka refractoriness kiʻekiʻe (hiki ke hoʻohana ʻia ma 1450 ℃ i ka ea a me 1800 ℃ i ka lewa kūlohelohe)

-ʻAʻole i hoʻopilikia ʻia e ka ʻino a ʻaʻole pulu me ka alumini hoʻoheheʻe a i ʻole ka zinc hehee

-Paʻakiki kiʻekiʻe

-Haʻahaʻa friction coefficient

-Kūʻē abrasion

-Kūʻē i nā ʻakika kumu a ikaika

-Hiki ke hoʻopololei

-Ka ikaika mechanical kiʻekiʻe

Hoʻohana Silicon Carbide:

-Mechanical seal, bearings, thrust bearings, etc

-ʻO nā hui hoʻololi

-Semiconductor a me ka uhi

-Pnā mea hoʻolaha Pump

-Nā ʻāpana kemika

-Nā aniani no nā ʻōnaehana laser ʻoihana.

- Nā reactors kahe mau, nā mea hoʻololi wela, etc.

Hiʻona
Hoʻokumu ʻia ka Silicon carbide i ʻelua ala:

1) Pressureless sintered silika carbide

Ma hope o ka hoʻopaʻa ʻia ʻana o nā mea carbide silicon pressureless, ua hōʻike ʻia ke kiʻi kiʻi aniani ma lalo o ka 200X optical microscope i ka hāʻawi like ʻana a me ka nui o nā kristal, a ʻaʻole ʻoi aku ka nui o ka kristal nui ma mua o 10μm.

2) Reaction sintered silika carbide

Ma hope o ka hoʻopili ʻana i ka silicon carbide, hoʻomaʻamaʻa kemika i ka ʻāpana paʻa a maʻalahi o ka mea, ka aniani
ʻO ka hāʻawi ʻana a me ka nui ma lalo o ka microscope optical 200X he ʻano like, a ʻaʻole ʻoi aku ka nui o ka ʻike silika manuahi ma mua o 12%.