Karāpiti me te paninga TaC

I. Te tūhuratanga o ngā tawhā tukanga

1. Pūnaha TaCl5-C3H6-H2-Ar

2. Te pāmahana whakatakoto:

E ai ki te tātai thermodynamic, ka tatauhia ina nui ake te pāmahana i te 1273K, he tino iti te pūngao kore utu Gibbs o te tauhohenga, ā, he tino oti te tauhohenga. He tino nui te pūmau tauhohenga KP i te 1273K, ā, ka tere te piki haere me te pāmahana, ā, ka āta pōturi te tere tipu i te 1773K.

Te awe ki te āhua o te mata o te paninga: Ki te kore e tika te pāmahana (tino tiketike, tino iti rānei), ka puta he āhua waro kore utu, he pūwero rānei te mata.

(1) I ngā pāmahana teitei, ka tere rawa te nekehanga o ngā ngota, ngā rōpū rānei o te matū hohe, ka kore e taurite te tohatoha i te wā e kohikohi ana ngā rauemi, ā, kāore e taea e ngā wāhi momona me ngā wāhi rawakore te whakawhiti maeneene, ka puta he pūwero.

(2) He rerekētanga i waenga i te tere o te tauhohenga pyrolysis o ngā alkanes me te tere o te tauhohenga whakaiti o te tantalum pentachloride. He nui rawa te waro pyrolysis, ā, kāore e taea te whakakotahi me te tantalum i te wā tika, ka hua ake te takai o te mata e te waro.

Ina tika te pāmahana, ka puta te mata o tePaninga TaChe matotoru.

TaCKa rewa, ka huihui ngā matūriki tetahi ki tetahi, ka oti te āhua tioata, ā, ka maeneene te nekehanga o te rohe kōpaka.

3. Te ōwehenga hauwai:

Hei tāpiri, he maha ngā āhuatanga e pā ana ki te kounga o te paninga:

-Te kounga o te mata o raro

-Te mara hau whakapūtanga

-Te nui o te ōritetanga o te ranunga hau tauhohenga

II. Ngā hapa noa opaninga tantalum carbide

1. Te pakaru me te tihore o te paninga

Tauwehenga whānui wera rārangi CTE rārangi:

2. Tātari hapa:

(1) Take:

(2) Tikanga whakaahuatanga

① Whakamahia te hangarau whakarara hihi-X hei ine i te taumahatanga toenga.

② Whakamahia te ture a Hu Ke hei whakatau tata i te ahotea toenga.

(3) Ngā tātai e pā ana

3. Whakapai ake i te hototahi ā-pūkaha o te paninga me te papa

(1) Paninga tipu o te mata i roto i te wāhi

Hangarau whakatakoto me te horapa tauhohenga wera TRD

Te tukanga tote whakarewa

Whakangāwaritia te tukanga whakaputa

Whakaitihia te pāmahana tauhohenga

He iti ake te utu

He pai ake te taiao

He pai mō te whakaputa ahumahi nui

(2) Paninga whakawhiti whakakotahi

Te tukanga whakatakoto tahi

CVDtukanga

Paninga maha-wāhanga

Te whakakotahi i ngā painga o ia wāhanga

Whakaritea ngāwari te hanganga me te ōwehenga o te paninga

4. Hangarau whakatakoto me te horapa tauhohenga wera TRD

(1) Te Tikanga Tauhohenga

Ko te hangarau TRD e kiia ana ko te tukanga whakauru, e whakamahi ana i te pūnaha waikawa boric-tantalum pentoxide-sodium fluoride-boron oxide-boron carbide hei whakarite.paninga tantalum carbide.

① Ka whakarewahia te tantalum pentoxide e te waikawa boric rewa;

② Ka whakaitihia te pentoxide Tantalum hei ngota tantalum hohe, ā, ka horapa ki runga i te mata o te karāhe;

③ Ka mimitihia ngā ngota tantalum hohe ki te mata o te karāpeti, ā, ka tauhohe ki ngā ngota waro hei hangapaninga tantalum carbide.

(2) Kī Tauhohenga

Me tutuki i te momo paninga kāpirati te whakaritenga kia nui ake te pūngao kore hanga waikura o te huānga e hanga ana i te kāpirati i tō te waikura boron.

He iti rawa te pūngao Gibbs kore utu o te carbide (ki te kore, ka puta pea te boron, te borida rānei).

He waikura kūpapa te tantalum pentoxide. I roto i te borax rewa i te pāmahana teitei, ka taea e ia te tauhohe ki te waikura kawakore kaha o te waikura konutai hei hanga i te konutai tantalate, ā, ka whakaitihia te pāmahana tauhohenga tuatahi.