(Ceramic nke metallizedMepụtara yaWintrusetk)
Ceramic metallizationbụ usoro nke itinye mkpuchi ọla na-akwadosi ike na elu seramiiki. Nke a bụ nzọụkwụ dị oké mkpa ebe ọ bụ na seramik bụ ihe na-esighị n'okike a na-ere ya. Igwe oyi akwa nke metallized na-eme ka ha nwee ike ire ere, na-enye ntọala dị mkpa maka ịmepụta njikọ seramiiki na metal siri ike.
N'okpuru ebe a bụ nkọwa nke ụzọ anọ bụ isi eji eme ihe na ụlọ ọrụ taa.
1. Molybdenum-Manganese (Mo-Mn)Usoro: The Industrial Standard
NkeMo-MnUsoro bụ teknụzụ metallization seramiiki a na-ejikarị eme ihe yana nke ọma. Kemgbe etiti narị afọ nke iri abụọ, ọ bụla usoro ọkọlọtọ maka imepụta akara ntụkwasị obi dị elu na ngwa eletrọnịkị agụụ na ngwa ikuku.
Ụkpụrụ Usoro:na-akwadebe slurry nke refractory molybdenum ntụ ntụ, manganese ntụ ntụ, na activators (eg Al2O3, SiO2, na CaO) na organic ihe nchikota. A na-etinye slurry a n'elu seramiiki ma gbanye ya na okpomọkụ dị elu (1300-1600 ° C) na ebe ikuku na-ekpo ọkụ (ebe igirigi = + 30 ° C).
Uru: Ọ na-enye ike akara dị elu (na-eru 60.2 ± 7.7 MPa site na usoro eji arụ ọrụ) yana ezigbo oghere ike (yana ọnụego ntanye dị ka 2.3 × 10⁻¹¹ Pa·m³/s). Usoro ahụ na-enye ohere maka ọtụtụ usoro nhazigharị na uru site na windo usoro obosara, nke na-agbaghara.
Oke:Okpomọkụ dị elu nwere ike ịgbanwe njirimara seramiiki. Usoro ahụ chọrọ nnukwu akụrụngwa ọkụ hydrogen, na-ebute ogologo oge okirikiri. Ọzọkwa, ọ bụ ekwekọghị na ceramik na-abụghị oxide dị ka AlN na enweghị usoro tupu oxidation.
2. Ụzọ ịgbanyụ ọkụ: Kwado wiwi multilayer
Usoro nchikota a na-etinye nchara nchara ozugbo n'ime usoro mkpọ seramiiki. Isi mmalite bụ "ịgbanye seramiiki akwụkwọ ndụ akwụkwọ ndụ," nke gụnyere ibipụta enyo enyo tapawa metal na-agbanwe agbanwe (dị ka tungsten, molybdenum, ma ọ bụ molybdenum-manganese) n'elu mpempe akwụkwọ seramiiki na-enweghị ọkụ (green). A na-ejikọta akwụkwọ ndị a ma jikọta ọnụ iji mechaa ma seramiiki densification na ime metallization n'otu nzọụkwụ.
3. Ọla kọpa kwụ ọtọ (DBC)bụ Kachasị mma maka Mgbasa Ike
Ọla kọpa kwụ ọtọ (DBC)emepụtara na 1970s ma GE mebere ya na mbụ na United States. Ọ bụrụla ugbu a teknụzụ ọkọlọtọ maka modul IGBT dị elu na ihe mgbasa ọkụ ọkụ LED. Usoro a na-agụnye ijikọ foil ọla kọpa ozugbo na mkpụrụ osisi seramiiki, na-ebute ihe owuwu nwere nnukwu okpomọkụ na mkpuchi ọkụ.
4. Active Metal Brazing (AMB): Mgbanwe nke otu nzọụkwụ akara
Active Metal Brazing (AMB) bụ ihe ọhụrụ dị ịrịba ama na-ejikọta metallization na brazing n'ime otu usoro dị mfe. A na-arụzu nke a site na iwebata ihe ndị na-arụ ọrụ, dị ka Ti, Zr, Nb, ma ọ bụ V, ozugbo na metal brazing filler. N'ebe okpomọkụ dị elu, ihe ndị a na-eji seramiiki emeghachi omume n'ụzọ kemịkalụ iji mepụta oyi akwa mmeghachi omume nwere nhazi nke njikọ ọla. Ọmụmaatụ gụnyere TiO, TiN, na Cu3Ti3O. Igwe oyi akwa a na-enye ohere igwe ndochi brazing mee ka mmiri dị n'elu seramiiki ozugbo.
Njirimara usoro:
Usoro ọrụ a dị mfe: Na-ewepụ mkpa maka usoro nrụpụta ụzọ dị iche iche.
Okpomọkụ Nhazi dị ala: Mkpa ọkụ na-apụta na obere okpomọkụ (800–950°C).
Igwe a na-achịkwa: Mee n'ime oghere ma ọ bụ ikuku inert dị elu dị elu iji gbochie oxidation nke ihe ndị na-arụ ọrụ.
Ngwakọta ihe onwunwe: Kwesịrị ekwesị maka seramiki dịka Al2O3, AlN, na Si3N4.
