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ʻO ke kumu o ka umu ulu kristal hoʻokahi: Ke wehe nei i nā mea huna o nā kahua wela graphite maʻemaʻe kiʻekiʻe
ʻO ke kikowaena o ka umu ulu kristal hoʻokahi ka mea nui i ka hana kristal, a ʻo kāna hoʻolālā kahua wela e pili pono ana i ka maʻemaʻe a me ka maikaʻi o ke kristal. Ma ke ʻano he ʻāpana kikowaena o ka umu, hāʻawi ke kahua wela graphite maʻemaʻe kiʻekiʻe i ka conductivity thermal maikaʻi loa, kiʻekiʻe-...E heluhelu hou aku -
Ke koho ʻana i ka ipu hoʻoheheʻe graphite kūpono no ka ulu ʻana o ka kristal: He alakaʻi kūpono
I ke ao o ka ulu ʻana o ke kristal—inā no SiC, GaN, sapphire, a i ʻole nā mea holomua ʻē aʻe—ʻaʻole wale ka ipu hao graphite he ipu. He palena wela ia, he ʻaoʻao pane, a he kiaʻi puka no ka maʻemaʻe. ʻO ke koho ʻana i ka ipu hao kūpono hiki ke hoʻopilikia nui i ka hua, ka maikaʻi o ke kristal, a...E heluhelu hou aku -
Alakaʻi Koho ʻana i ka ipu hoʻoheheʻe Graphite i uhi ʻia ʻo TaC
I loko o nā lako ulu kristal wela kiʻekiʻe a me nā lako epitaxy/deposition, ʻekolu mau kuleana o kahi ipu graphite i ka manawa hoʻokahi: kahi palena wela, kahi interface reaction, a me kahi kumu haumia / pale haumia. ʻO ia ke kumu e lilo nei nā ipu graphite i uhi ʻia me TaC i mea maʻamau—he ...E heluhelu hou aku -
No ke aha e hoʻoholo ai nā ipu hoʻoheheʻe graphite i uhi ʻia e SiC i ka hana nui paʻa？
Ma nā laina hana ulu kristal SiC, nui nā ʻenekinia e kālele ana i ka hoʻolālā ʻāpana wela, nā piʻo kaohi mahana, a me ka hoʻokumu ʻana o ka pauka. Akā naʻe, i ka wā e kū mai ai nā loli o ka hua, hoʻi pinepine ke kumu i ka ʻāpana like - ka ipu hoʻoheheʻe. ʻAʻole ia e hoʻopuka i ka mālamalama, ʻaʻole e wili, a ʻaʻole e hōʻike i kahi...E heluhelu hou aku -
He aha ka mea hoʻomehana uhi ʻia ʻo MOCVD SiC
ʻO ka MOCVD (Metal-Organic Chemical Vapor Deposition) kahi ʻenehana i hoʻohana nui ʻia no ka waiho ʻana o ka ʻili lahilahi kiʻekiʻe a he kuleana koʻikoʻi kona i nā ʻoihana hana semiconductor a me nā mea uila. Ma ke ʻano he ʻāpana koʻikoʻi i ke kaʻina hana MOCVD, hoʻohana pinepine ʻia nā mea hoʻomehana i uhi ʻia me SiC e kākoʻo i ke kiʻekiʻe-t...E heluhelu hou aku -
ʻO ka mahana kiʻekiʻe o ka mea hoʻomehana Graphite: He aha ka mea e kaupalena ai iā ia ma ka ea vs. Vacuum?
Hoʻohana nui ʻia nā mea hoʻomehana graphite, ma ke ʻano he mau mea hoʻomehana wela kiʻekiʻe, ma nā ʻoihana he nui, me ka metallurgy, electronics, semiconductors, a me nā kemika. Loaʻa i nā mea graphite ka conductivity thermal maikaʻi loa, ke kūpaʻa wela kiʻekiʻe, a me ke kūpaʻa kemika, e ʻae ana iā lākou e mālama...E heluhelu hou aku -
ʻO ka hoʻohana ʻana o ka Graphite Felt no ka pila kahe
Ma ke kahua o ka mālama ʻana i ka ikehu holomua, ua puka mālie mai nā pila kahe ma ke ʻano he hopena hiki ke hoʻonui ʻia a lōʻihi hoʻi, ʻoi aku hoʻi no nā noi paʻa e like me ke kaulike grid, ka hoʻohui ʻana i ka ikehu hou, a me nā ʻōnaehana kākoʻo ʻoihana. Ma waena o nā mea koʻikoʻi e hoʻoholo ai i ka hana...E heluhelu hou aku -
ʻO ka hoʻohana ʻana o ka pākaukau Graphite i manaʻo ʻia i loko o nā pākaukau kahe a me nā cell wahie
He kuleana koʻikoʻi ko ka ʻili pila graphite i nā ʻenehana pila hou, ʻoi aku hoʻi i nā pila kahe a me nā cell wahie. Ma ke ʻano he mea pono a paʻa hoʻi, hāʻawi ka ʻili graphite i ka conductivity uila maikaʻi loa a me ke kūpaʻa wela, ʻoiai e hāʻawi pū ana i ka hoʻomaikaʻi ʻana i ka hana pila, ex...E heluhelu hou aku -
He aha ka Graphite Electrode Felt?
ʻO ka electrode graphite i manaʻo ʻia he mea porous, kūpaʻa i ka mahana kiʻekiʻe i hoʻohana nui ʻia i nā noi electrochemical, ʻoi aku hoʻi i nā ʻōnaehana mālama ikehu a me ka hoʻololi ʻana e like me nā pila kahe redox, nā cell wahie, a me nā reactors electrolytic. Hana ʻia ia e carbonizing a me graphit...E heluhelu hou aku
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