ʻO Silicon carbide, kona inoa kemika SiC a i ʻole ka inoa kālepa carborundum, he mea hana ʻokoʻa i hana ʻia e ke kanaka i lilo i kia o ka ʻenekinia hou. Hoʻokumu ʻia ka pauka silicone carbide e ka hui ʻana i ke silika a me ke kalapona i nā wela kiʻekiʻe loa. Aneane pau loa o ka pauka abrasive silicon carbide i hoʻohana ʻia i nā hale hana i kēia lā i hana ʻia i loko o nā umu uila nui.
I kēia mau lā, ʻaʻole ʻo ka silicon carbide he "mea wili." He mea ʻenehana kiʻekiʻe ia i hoʻohana ʻia no ka hana ʻana i nā chips i loko o kāu kelepona paʻa, nā kaʻa i nā kaʻa haʻuki kiʻekiʻe, a me nā mea pale pale i kau ʻia e nā koa. ʻO kona hiki ke pale aku i ka wela nui, pale aku i ka pōʻino kemika, a noho ʻoi ma lalo o ke kaumaha kaumaha, ʻo ia ke koho mua no nā ʻenekinia e hana ana i nā kaiapuni paʻakikī loa ma ka Honua.
Hana ʻia ka hapa nui o SiC me ka hoʻohana ʻana i ke kaʻina hana Acheson. Ma kēia ʻano, hoʻokomo ʻia ke one silica maʻemaʻe kiʻekiʻe a me ka coke petroleum i loko o kahi umu uila nui. Ke piʻi ka umu ahi i ka mahana a hiki i 2,500 degere Celsius, hiki mai ka hopena kemika. ʻO ka paʻa kilika a me ke kalapona i hui pū ʻia e hana i nā kristal nui. A laila ʻoki ʻia kēia mau kristal a hoʻoheheʻe ʻia i nā ʻano nui like ʻole e hana i ka pauka a mākou e hoʻohana nei i kēia lā.
Hoʻokaʻawale ʻia ka pauka e ka nui "grit". Loaʻa i ka pauda koʻikoʻi nā hua nui a ʻoʻoleʻa hiki ke wehe koke i nā mea he nui. Loaʻa i ka pauda maikaʻi nā hua liʻiliʻi liʻiliʻi i hoʻohana ʻia no ka polishing. Hoʻopili ka ʻoihana i nā lula o ka honua e like me FEPA a me ANSI e hōʻoia i kēlā me kēia ʻeke o ka silicon carbide abrasive pauka i ka nui o ka palaoa e pono ai no kahi hana kikoʻī. ʻO kēia kūlike ke kumu e hiki ai i nā mea hana ke hilinaʻi iā SiC no ka hana pololei i kēlā me kēia lā.
.jpg)
Ka hana ana opauka abrasive silikon carbidepili i kona maemae. Hiki i nā mea liʻiliʻi liʻiliʻi ke hoʻololi i ke ʻano o ka pauda. Aia ma lalo kahi papaʻaina maʻalahi e hōʻike ana i ka mea i loko o ka pauka silicon carbide ʻeleʻele kiʻekiʻe a me ka ʻōmaʻomaʻo.
| ʻElemu/Component | ʻEleʻele Silicon Carbide (%) | 'Omaomao Silicon Carbide (%) |
|---|---|---|
| Kapili Silika (SiC) | 98.2% - 98.8% | 99.2% - 99.7% |
| Kalapona manuahi (C) | Ma lalo o 0.2% | Ma lalo o 0.1% |
| Hao Oxide (Fe2O3) | Ma lalo o 0.3% | Ma lalo o 0.05% |
| Silika (SiO2) | Ma lalo o 0.3% | Ma lalo o 0.1% |
E like me kāu e ʻike ai, ʻo ka carbide silika ʻōmaʻomaʻo ka mana "maʻemaʻe". Loaʻa iā ia ka SiC a me ka liʻiliʻi o nā haumia, ʻo ia ke kumu i hoʻohana ʻia ai no nā noi ʻenehana koʻikoʻi, e like me ka ʻoihana uila.
Hōʻike kēia mau helu iā lākou inā hiki i ka mea ke ola i ke kaomi a i ʻole ka wela o kahi hana kikoʻī. Eia nā stats mechanical no ka pauka carbide silika.
| Waiwai Kino | Waiwai | No ke aha ia mea |
|---|---|---|
| Mohs Paʻakikī | 9.2 - 9.5 | Hiki iā ia ke ʻoki kokoke i nā metala a i ʻole nā pōhaku. |
| ʻO ka mānoanoa | 3.20 g/cm³ | He ikaika akā ʻaʻole kaumaha loa. |
| Lae hehee | 2,730°C (Dissociation) | Hiki iā ia ke ola i nā wela wela o ka umu ahi. |
| ʻO ka hoʻoili wela | 120 W/m·K | Kōkua ia i ka hoʻomaha ʻana i nā mea hana i ka wā e hana ai. |
| Ka ikaika hoʻopili | 3,900 MPa | Hiki iā ia ke lawe i ka nui o ka ikaika paʻi. |
Hōʻike kēia mau helu ua kūkulu ʻia ka pauka abrasive silicon carbide no nā kaiapuni koʻikoʻi. He mea hana kiʻekiʻe ia e ʻoi aku ka maikaʻi o ke one kahiko a i ʻole ka alumini oxide ma kahi kokoke i kēlā me kēia ʻano loea.
No ka mea he nui nā hiʻohiʻona kūikawā silicon carbide pauka, hoʻohana ʻia ia i nā ʻoihana like ʻole. He mea paʻakikī ke hele i hoʻokahi lā me ka hoʻohana ʻole i kahi mea i hana ʻia me ke kōkua o SiC.
Ke hana ka hale hana i kahi ʻāpana metala paʻakikī, hoʻohana lākou i ka huila wili. Inā hana ʻia kēlā ʻāpana me kahi mea e like me ka hao a i ʻole ka metala non-ferrous (e like me ke alumini a i ʻole ke keleawe), ʻo ka silicon carbide ka koho maikaʻi loa. ʻAʻole like me nā abrasives ʻē aʻe, ʻaʻole hikiwawe ka SiC. Nahā ʻo ia i ʻāpana ʻoi, no laila e ʻoki pono a hiki i ka pau ʻana o ka palaoa.
He ʻano liʻiliʻi kēia me ka palaoa. Hoʻohana ʻia kēia mau pauka i kahi hana i kapa ʻia ʻo "lapping." No ka laʻana, pono e maʻalahi nā lens i nā kāmela kiʻekiʻe a i ʻole nā telescopes. Hoʻohana ka poʻe hana i ka pauka abrasive silicon carbide i loko o kahi hui wai e hamo mālie i ke aniani a palahalaha loa. Mālama kēia i ka hele ʻana o ka mālamalama i ka lens me ka ʻole o ka distortion.
Hoʻohana nā kaʻa kuʻuna i nā ʻāpana silika e mālama i ka mana. Eia nō naʻe, pono nā EV e hoʻoneʻe i ka uila nui loa mai ka pākaukau a i ke kaʻa. E wela loa nā ʻāpana silikoni a hoʻopau i ka ikehu. Ua ʻike nā mea ʻenekinia inā hoʻohana lākou i ka silicon carbide ma kahi, hiki i nā chips ke mālama i nā voltage kiʻekiʻe a noho mālie.
'O ia ho'i, hiki i ke ka'a uwila ke hele 'oi aku ma ka uku ho'okahi a ho'opa'a wikiwiki 'ia ma ke kahua. ʻO ka pauka silicon carbide kiʻekiʻe ka mea hoʻomaka no ka hana ʻana i kēia mau ʻāpana kiʻekiʻe. Ke hoʻololi nei ka poʻe i nā kaʻa uila, ʻoi aku ka wikiwiki o ka koi no ka pauka silicon carbide kiʻekiʻe ma mua o ka wā ma mua. ʻO ia ka mea huna e hiki ai i ka halihali ʻōmaʻomaʻo.
.jpg)
I ka wā ma mua, ua hana nui ʻia nā kapa "bulletproof" i ke kila kaumaha a i ʻole nā lole palupalu. I kēia lā, hoʻohana nā mea kaua kiʻekiʻe i nā papa seramika. No ka hana ʻana i kēia mau papa, kaomi ʻia ka pauda silicon carbide a hoʻomehana ʻia a lilo i ʻāpana paʻa paʻa.
Ke pā ka pōkā kiʻekiʻe i ka pā kalapona silika, ʻoi aku ka paʻakikī o ka seramika ma mua o ka pōkā. Hoʻoikaika ka pā i ka pōkā e palahalaha a nahaha. ʻOiai hiki ke pohā ka pā, hoʻopau ia i ka ikehu a pale i ke kanaka e ʻaʻahu ana. Ma muli o ka māmā o SiC ma mua o ke kila, hiki i nā koa a me nā mākaʻi ke neʻe maʻalahi i ka wā e noho maluhia ana. Hoʻohana ʻia kēia ʻenehana like e pale i nā ʻaoʻao o nā pahu a me nā helikopter.
Hoʻohana ʻia ka pauka silicone carbide e hana i nā mea "refractory". He mau mea kēia i hoʻolālā ʻia e noho paʻa i ka wela. No ka laʻana, ʻo ka "mea lako" i loko o kahi kiln keramika—nā papa a me nā pou e paʻa ai ka ipu lepo—ua hana pinepine ʻia me ka silicon carbide.
No ka mea he haʻahaʻa haʻahaʻa ka hoʻonui wela o SiC, ʻaʻole ia e ulu a emi nui paha ke loli ka mahana. Mālama kēia i nā mea mai ka pohā. Inā hoʻohana ʻoe i nā papa metala, e kūlou a heheʻe paha lākou, akā paʻa paʻa loa ka silicon carbide. Mālama kēia hilinaʻi i ke kālā he nui no ka mea ʻaʻole pono lākou e hoʻololi pinepine i kā lākou mau ʻāpana.
ʻO ka mea mua, no ka mea paʻakikī loa a lōʻihi ka lōʻihi, ʻaʻole pono nā hale hana e hoʻohana e like me ia. ʻO ka liʻiliʻi o ka ʻōpala ke ʻano o ka wāwae liʻiliʻi ma ka Honua. ʻO ka lua, e like me kā mākou i ʻōlelo ai ma mua, he ʻāpana nui ia o ka ʻenehana i nā kaʻa uila a me nā panela lā.
I ka ikehu la,ka pauda kalapona silika hoʻohana ʻia no ka ʻokiʻoki ʻana i nā ʻāpana silika i ʻāpana lahilahi e hopu i ka mālamalama o ka lā. ʻOi aku ka lahilahi a me ka pololei o ka ʻoki ʻana, ʻoi aku ka maikaʻi o ka panel solar. Ma ka hāʻawi ʻana i nā mea hana e hana ai i nā panela solar maikaʻi aʻe a me nā EV, kōkua maoli ka silicon carbide i ka honua e neʻe aku mai ka aila a me ka lanahu. He mea "'ōmaʻomaʻo" ia ma nā ʻano ʻoi aku ma mua o hoʻokahi.
No ka wehe ʻana i ka ʻeleʻele a i ʻole ka ʻoki pōhaku, ʻo ka carbide silicon ʻeleʻele ʻeleʻele ka mea maʻamau a maikaʻi loa ke koho. He paʻakikī a hoʻopau wikiwiki i ka hana.
Eia nō naʻe, inā e hana ana ʻoe i kahi mea maʻalahi, e like me ka puʻupuʻu kamepiula a i ʻole kahi ʻāpana mea nani, pono ʻoe e ʻimi i ka pauda micro-carbide ʻōmaʻomaʻo. Pono ʻoe e nānā i ka "maʻemaʻe" o ka pauka. No ka wili ʻoihana, 98% ka maʻemaʻe maikaʻi. Akā no ka hana ʻana i ka uila, pono ʻoe i ka 99.9% maʻemaʻe.
He mea hana kiʻekiʻe ia e hoʻopili ai i ka ʻokoʻa ma waena o ka hana kuʻuna a me ka wā e hiki mai ana o ka ʻenehana. ʻO kona paʻakikī loa e hiki ai iā mākou ke hana i nā metala a me nā pōhaku ʻoi loa. ʻO kona kūpaʻa wela nui e mālama i kā mākou mau hale hana a palekana kā mākou kaʻa aerospace. Ke hoʻololi nei kāna mau waiwai uila i ke ʻano o kā mākou hoʻokele a me ka hoʻohana ʻana i ka ikehu. Mai ka puʻupuʻu kamepiula liʻiliʻi a hiki i ka umu ʻoihana nui loa, hāʻawi ka silicon carbide abrasive pauka i ka ikaika a me ka hilinaʻi e koi ʻia e ka ʻoihana hou. Ke hoʻomau nei mākou i ka hana hou ʻana, ʻaʻohe kānalua e noho kēia "diamana hana" ma ke kikowaena o kā mākou holomua ʻenehana.
1. He mea maoli a hana ʻia paha e ke kanaka?
ʻOiai aia ma ke ʻano ma ke ʻano he mineral i kapa ʻia ʻo moissanite, he mea kakaʻikahi loa ia a loaʻa wale ma nā helu liʻiliʻi i nā meteorites. Hoʻokumu ʻia ka ʻenehana ʻoihana i nā umu uila nui me ka hoʻohana ʻana i ke one a me ke kalapona.
2. Hiki iaʻu ke hoʻohana i ka pauka abrasive silicon carbide no ka wili pulu a maloʻo?
ʻAe, hana maikaʻi loa ka silicon carbide ma nā wahi ʻelua. Hoʻohana pinepine ʻia ma ke ʻano "slurry" (i hui pū ʻia me ka wai a i ʻole ka aila) no ka hoʻoliʻiliʻi ʻana i ke aniani a me nā wafers, akā hoʻohana ʻia nō hoʻi ia i ka pepa one maloʻo no ka hana lāʻau a me ka mea hao.
3. No ke aha i ʻoi aku ka maikaʻi o ka carbide silicon green ma mua o ka ʻeleʻele?
ʻOi aku ka pipiʻi o ka carbide silika ʻōmaʻomaʻo no ka mea ʻoi aku ka maʻemaʻe. Pono ʻo ia i nā mea waiwai ʻoi aku ka maikaʻi a me ke kaʻina hana ʻoi aku ka akahele e hōʻoia i ka liʻiliʻi o nā haumia e like me ka hao a i ʻole ke kalapona manuahi.
4. He palekana paha ke mālama ʻana i ka pauka silika carbide?
ʻAʻole ʻawaʻawa ka Silicon carbide. Eia naʻe, no ka mea, ua hana ʻia ka pauda i nā kristal liʻiliʻi liʻiliʻi, hiki ke hōʻeha i kou mau māmā inā ʻoe e hanu iā ia.
5. He lepo anei ka pauda silika carbide?
ʻAʻole, ʻo ka silicon carbide he mea keramika a ʻaʻohe metala hiki ke ʻōpala. He kūpaʻa loa ia i ka wai, ka paʻakai, a me ka hapa nui o nā kemika, ʻo ia ke kumu i hoʻohana ʻia ai i nā noi kai a me nā kemika.
6. Pehea wau e mālama ai i ka pauka?
ʻO ka mea nui ka mālama ʻana i ka maloʻo. Inā pulu ka pauka, hiki iā ia ke hui pū, he mea paʻakikī ke hoʻohana ʻia i nā mīkini a i ʻole no ka polishing pololei. E mālama i loko o kahi pahu i hoʻopaʻa ʻia ma kahi maloʻo a maloʻo.
.png)
