Graphite ine TaC coating

I. Kuongorora ma parameter emaitiro

1. Sisitimu yeTaCl5-C3H6-H2-Ar

2. Kupisa kwekuisa:

Zvichienderana nefomura yethermodynamic, zvinoverengerwa kuti kana tembiricha iri pamusoro pe1273K, simba reGibbs free reaction rinenge rakaderera zvikuru uye reaction inenge yakakwana. Iyo reaction constant KP yakakura kwazvo pa1273K uye inowedzera nekukurumidza netembiricha, uye kukura kwekukura kunodzikira zvishoma nezvishoma pa1773K.

Kukanganiswa kwechimiro chepamusoro pechifukidziro: Kana tembiricha isingakodzeri (yakakwira zvakanyanya kana yakaderera zvakanyanya), pamusoro pacho panoratidza chimiro chekabhoni chakasununguka kana kuti maburi akareruka.

(1) Pakupisa kwakanyanya, kumhanya kwekufamba kwemaatomu kana mapoka ereactant anomhanya zvakanyanya, izvo zvinozoita kuti kupararira kusina kuenzana panguva yekuunganidzwa kwezvinhu, uye nzvimbo dzakapfuma nedzisina hurombo hadzigone kuchinja zvakanaka, zvichikonzera maburi.

(2) Pane musiyano pakati pehuwandu hwekuita kwe pyrolysis hwe alkanes nehuwandu hwekuita kwe tantalum pentachloride. Kabhoni ye pyrolysis yakawandisa uye haigone kusanganiswa ne tantalum nekufamba kwenguva, zvichiita kuti pamusoro payo paputirwe nekabhoni.

Kana tembiricha yakakodzera, pamusoro peKuputira TaCyakakora.

TaCzvidimbu zvinonyunguduka uye zvinoungana pamwe chete, chimiro chekristaro chapera, uye muganhu wezviyo unoshanduka zvakanaka.

3. Chiyero chehydrogen:

Uye zvakare, kune zvinhu zvakawanda zvinokanganisa kunaka kwekuputira:

-Hunhu hwepamusoro pevhu

-Munda wegesi unobviswa

-Kuenzana kwekusanganiswa kwegasi rinoita reactant

II. Zvikanganiso zvakajairika zvekuputira tantalum carbide

1. Kuputira nekutsemuka

Kuwanda kwekuwedzera kwekupisa kwemutsara CTE:

2. Kuongorora zvikanganiso:

(1) Chikonzero:

(2) Nzira yekunyora hunhu

① Shandisa tekinoroji yeX-ray diffraction kuyera kusimba kwasara.

② Shandisa mutemo waHu Ke kuti ufungidzire kushushikana kwasara.

(3) Mafomura akafanana

3. Simbisa kuenderana kwemuchina kwejira uye substrate

(1) Kufukidza kukura kweganda pamusoro penzvimbo

Kuisa maitiro ekupisa uye tekinoroji yekupararira kwemafuta TRD

Maitiro emunyu wakanyungudutswa

Rerutsa maitiro ekugadzira

Deredza tembiricha yekuita

Mutengo wakaderera

Zvine hushamwari kune zvakatipoteredza

Yakakodzera kugadzirwa kwemaindasitiri makuru

(2) Kuputira kwekuchinja kweComposite

Maitiro ekuisa pamwe chete

CVDmaitiro

Kupfeka kwezvikamu zvakawanda

Kubatanidza zvakanakira zvechikamu chimwe nechimwe

Gadzirisa chimiro chekuputira uye chiyero chacho nenzira inochinjika

4. Kuisa tekinoroji yekupisa uye kupararira kwemafuta TRD

(1) Maitiro ekuita chiito

Tekinoroji yeTRD inonziwo maitiro ekubatanidza, iyo inoshandisa sisitimu ye boric acid-tantalum pentoxide-sodium fluoride-boron oxide-boron carbide kugadzirakuputira tantalum carbide.

① Boric acid yakanyungudutswa inonyungudutsa tantalum pentoxide;

② Tantalum pentoxide inoderedzwa kuita maatomu etantalum anoshanda uye inopararira pamusoro pegirafiti;

③ Maatomu etantalum anoshanda anonamirwa pamusoro pegirafiti uye anobatana nemaatomu ekabhoni kuti aumbe.kuputira tantalum carbide.

(2) Kiyi yeKupindura

Rudzi rwekuputira kabhoni runofanira kuzadzisa chinodiwa chekuti simba risingabvisike rechinhu chinoumba kabhoni rive rakakwirira kupfuura reboron oxide.

Simba risingabhadharwe reGibbs recarbide rakaderera zvakakwana (zvikasadaro, boron kana boride zvinogona kuumbwa).

Tantalum pentoxide i oxide isina kusimba. Mu borax yakanyungudutswa ine tembiricha yakakwira, inogona kuita zvakafanana ne alkaline oxide sodium oxide yakasimba kuti igadzire sodium tantalate, nokudaro ichideredza tembiricha yekutanga.