ʻO Boron Nitride

hoakaka

Product hōʻikeʻano

inoa Pākē: hexagonal boron nitride, boron nitride

inoa Pelekania: Boron Nitride

ʻAno molekole: BN

Kaumaha molekula: 24.18 (e like me ke kaumaha atomika honua o 1979)

Kūlana maikaʻi: 98%, 99%

Kūlana ʻoihana: Q/YLH001-2006

Ka helu HS: 2850001200

Helu CAS: 10043-11-5

Hoʻohui ʻia ka boron nitride haʻahaʻa ma o ka hui ʻana i ka borax a me ka ammonium chloride i loko o kahi umu hoʻoheheʻe ma kahi mahana hopena o 1000-1200°C. Hoʻohui ʻia ka boron nitride kiʻekiʻe ma ka hui ʻana i ka waika boric a me ka melamine ma o ka hopena calcination kiʻekiʻe ma 1700.

Nā Huahana Huahana

ʻO Boron nitride kahi aniani i haku ʻia me nā ʻātoma nitrogen a me nā ʻātoma boron. Ua māhele ʻia ka hale aniani i: hexagonal boron nitride (HBN), hexagonal boron nitride (WBN) a me cubic boron nitride, a ma waena o ia hexagonal boron nitride crystals He ʻano like graphite layered ka hale, e hōʻike ana i ka pauka keʻokeʻo i wehe. , lubricated, maʻalahi e komo i ka makū, a māmā i ke kaumaha, no laila ua kapa ʻia ʻo ia ʻo "white graphite".

ʻO 2.27g/cm3 ka mānoanoa manaʻo, ʻo ka umekaumaha kikoʻī he 2.43, a ʻo ka paʻakikī Mohs he 2.

Hexagonal boron nitride maikaʻi ka uila uila, thermal conductivity, kemika kūpaʻa, ʻaʻohe wahi heheʻe ʻike ʻia, ke kū ʻana o ka wela i 3000 ℃ i 0.1MPA nitrogen, wela ke kū i ka 2000 ℃ i kahi ea hoʻohaʻahaʻa kūʻokoʻa, i ka nitrogen a hiki ke hiki i ka mahana hana i ka argon. 2800 ℃, a ʻilihune ka paʻa o ka lewa oxygen, a ʻo ka mahana hana ma lalo o 1000 ℃.

Ua like ka huina hoonui o ka boron nitride hexagonal me ka quartz, aka, o ka hoonui wela he umi manawa ia o ka quartz. Loaʻa iā ia ka lubricity maikaʻi i ka wela kiʻekiʻe. He lubricant paʻa wela kiʻekiʻe me ka ikaika o ka neutron absorption, nā waiwai kemika paʻa, a me ka inertness kemika i nā metala hehee a pau.

Hexagonal boron nitride ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai anuanu. Ke hoʻolapalapa ʻia ka wai, hydrolyzes me ka mālie a hoʻohua i kahi liʻiliʻi o ka wai boric a me ka amonia. ʻAʻole ia e hana me nā ʻakika nāwaliwali a me nā kumu ikaika ma ka lumi wela. Hiki ke hoʻoheheʻe ʻia i loko o nā ʻakika wela. E hoʻohana i ka sodium hydroxide i hoʻoheheʻe ʻia, ka hoʻoheheʻe ʻana o ka potassium hydroxide e decompose. Loaʻa iā ia ka mana anti-corrosion i nā ʻakika inorganic, alkalis, nā paʻakai a me nā mea hoʻoheheʻe organik.

Nā meaʻike

Nā Kūlana Boron Nitride

1. ʻO ke kūpaʻa wela kiʻekiʻe: sublimation ma 3000 ℃, ʻo kona ikaika he 2 mau manawa ma mua o ka mahana o ka lumi ma 1800 ℃, a ʻaʻole ia e haki i ka wā e hoʻomaha ai i ka lumi wela no nā manawa he nui ma 1500 ℃, a ʻaʻole e palupalu i 2800 ℃ i loko. kinoea inert.

2. High thermal conductivity: ʻO ka huahana i hoʻopaʻa ʻia i ka wela he 33W/MK E like me ka hao maʻemaʻe, he mea hoʻoheheʻe thermally i nā mea ceramic ma luna o 530 °C.

3. ʻO ka helu hoʻonui wela haʻahaʻa: ʻO ka helu hoʻonui o 2 × 10-6 ka lua wale nō i ke aniani quartz, ʻo ia ka mea liʻiliʻi loa ma waena o nā seramika. Eia kekahi, loaʻa iā ia ka conductivity thermal kiʻekiʻe, no laila, maikaʻi ke kūpaʻa haʻalulu wela.

4. ʻO nā waiwai uila maikaʻi loa: ka hoʻokuʻu ʻana i ka wela kiʻekiʻe, 1014Ω-cm ma 25 ° C, a me 103Ω-cm ma 2000 ° C. He mea ʻoi aku ka maikaʻi o ka insulating wela kiʻekiʻe i nā seramika, me ka haʻihaʻi uila o 3KV/MV a me ka nalo dielectric haʻahaʻa o 108HZ. I ka 2.5 × 10-4, ʻo ka dielectric mau ka 4, a hiki iā ia ke hoʻouna i ka microwave a me nā kukuna infrared.

5. ʻO ke kūpaʻa ʻino maikaʻi: me nā metala maʻamau (hao, keleawe, aluminika, kepau, a me nā mea ʻē aʻe), nā metala honua laha, nā metala makamae, nā mea semiconductor (geranium, silicon, potassium arsenide), aniani, nā paʻakai hoʻoheheʻe (pōhaku kristal, fluoride , slag), nā ʻakika inorganic, ʻaʻole pane ka alkali.

6. ʻO ka helu haʻahaʻa o ka friction: ʻO U ka 0.16, ʻaʻole e piʻi i ka wela kiʻekiʻe. ʻOi aku ka pale ʻana i ka wela kiʻekiʻe ma mua o ka molybdenum disulfide a me ka graphite. Hiki ke hoʻohana ʻia ka lewa oxidizing a hiki i 900 ° C, a hiki ke hoʻohana ʻia ka ʻawaʻawa a hiki i 2000 ° C.

7. Maʻemaʻe kiʻekiʻe: ʻoi aku ka liʻiliʻi o kāna ʻike haumia ma mua o 10PPM, a ʻoi aku ka nui o kāna ʻike B ma mua o 43.6%.

8. Hiki i ka mīkini: ʻO kona paʻakikī ʻo Mohs 2, no laila hiki ke hana ʻia i nā ʻāpana me ka pololei kiʻekiʻe e nā ʻano mīkini maʻamau.

Ke kumu o ka noi

1. ʻO Boron nitride kahi mea me nā meaʻawaʻawaʻole, kiʻekiʻe keʻano o ka mahana wela, ka paleʻana i ka corrosion, ke kiʻekiʻe o ka thermal conductivity, ka insulation kiʻekiʻe a me nā waiwai lubricating maikaʻi loa.

2. ʻO ia ka mea hoʻokalakupua uila a me ka mea hoʻokele wela, nā mea electrolysis kūikawā a me nā mea kū'ē ma lalo o nā kūlana wela kiʻekiʻe, nā insulators no ka uila kiʻekiʻe kiʻekiʻe a me nā arcs plasma.

3. Hiki ke hoʻohana 'ia e like me ka paʻa-phase doping mea no semiconductors, a me ka momona e pale aku i ka oxidation a me ka wai.

4. ʻO ka lubricant kiʻekiʻe a me ka mea hoʻokuʻu mold no nā hiʻohiʻona, hiki ke hoʻohana ʻia ka pauka boron nitride ma ke ʻano he mea hoʻokuʻu no nā pahu aniani, a me kahi mea hoʻokuʻu mold no ke aniani a me ka hoʻoheheʻe metala.

5. Hiki ke ho'ohana 'ia ka mea 'oi loa i hana 'ia e ka boron nitride i mau mea hana 'oki ki'eki'e a me nā pahu wili no ka 'imi honua a me ka wili 'aila.

6. Nā mea hana o nā mea hoʻoheheʻe atomika, nā nozzles o nā mokulele a me nā ʻenekini rocket, nā mea hoʻopili e pale aku ai i ka neutron radiation, a me nā mea pale wela i ka aerospace.

7. ʻAʻohe mea ʻawaʻawa a maikaʻi ʻole a loaʻa ka lubricity, hiki ke hoʻohana ʻia i mea hoʻopiha no nā mea hoʻonaninani.

8. Me ke komo ʻana o ka catalyst, hiki ke hoʻololi ʻia i cubic boron nitride e like me ke daimana ma hope o ke kiʻekiʻe wela a me ke kiʻekiʻe puʻe lapaʻau.

9. E hana i nā moku hoʻoheheʻe like ʻole no ka capacitor film alumini paʻi, kiʻi paipu alumini paʻi, hōʻike alumini plating, etc.

10. Heat-sealing desiccant no nā transistors a me nā mea hoʻohui no nā polymers e like me nā resins plastic.

11. ʻO nā ʻano like ʻole o ka laser anti-counterfeiting alumini plating, trademark bronzing material, nā lepili cigakeke like ʻole, nā lepili pia, nā pahu pahu, nā pahu pahu paka, etc.