Izindaba

1. Inhloso yokuhlola:

Ngaphansi kwezimo zokukhiqiza zemishini efanayo nangaphansi kwesimo sokusabalalisa usayizi wezinhlayiyana ezifanayo, thatha iqoqo elifanayo le-zirconia powder, uqinisekise umehluko phakathi kwezinga lokushisa elilungile lokudubula lomkhiqizo lapho umehluko wesayizi wezinhlayiyana ezimaphakathi ungu-1um, 2um no-3um, futhi bese unquma ukushintshashintsha kosayizi wezinhlayiyana okuvunyelwe ekukhiqizeni.

2. Izinyathelo zokuhlola:

  1. Iqoqo elifanayo le-zirconia lakhethwa futhi lacutshungulwa laba osayizi abahlukene bezinhlayiya ezimaphakathi ne-Raymond mill, futhi kwakhethwa ukusatshalaliswa kosayizi wezinhlayiyana ezine okungu-d50=12.34um, 13.76um, 15.00um kanye no-15.92um.
  2. Ngokwefomula efanayo, izinhlobo ezine ze-zirconia zixubene zibe impahla ephuzi ye-praseodymium, eqala ukushiswa ku-920 ℃.Ukuze ulingise ukukhiqizwa okukhulu, isikhathi sokubamba kufanele sinwetshwe sibe yihora elingu-1.

3. Hlaziya imiphumela yokudubula, yahlulela ukuthi izinga lokushisa lokudubula lifanelekile, futhi uthole ukuthi kukhona ukushiswa ngokweqile.

4. Esimeni sokushiswa ngokweqile, thatha u-15 ℃ njenge-gradient futhi wehlise izinga lokushisa lokudubula ngokulandelana kuze kube izinhlobo ezine ze-zirconia zibonakala zivutha eluhlaza.
5. Qopha izinga lokushisa elingcono kakhulu lokudubula lezinhlobo ezine ze-zirconia ezinosayizi wezinhlayiyana ezihlukene.
6. Thola umehluko wokushisa wokudubula phakathi kwamasayizi wezinhlayiyana ezimaphakathi.

Ukuhlaziywa: phakathi kwalezi zigaba zokushisa kokudubula, izinga lokushisa elingcono kakhulu lokudubula le-zirconia eline-d50=12.34um licishe libe ngu-875 ℃, kanti izinga lokushisa elingcono kakhulu le-zirconia eline-d50=13.76um licishe libe ngu-890 ~ ​​905 ℃, kanye nezinga lokushisa elingcono kakhulu lokudubula le-zirconia. nge-d50=15.00um cishe i-905 ℃.Ngokombono wokuvela kokushiswa okuluhlaza, i-zirconia ene-d50=15.00um ibonakale ekuqaleni.875 ℃ ushiswe kancane, futhi inani elingu-b lehlile laya ku-70.59.Ngenxa yokuqukethwe okuphansi kwe-zirconium nomsebenzi ophezulu, i-zirconium engenisiwe, Izinga lokushisa lokudubula liphansi kakhulu, cishe ku-860 ℃.Ngemva kokuhlaziya idatha engenhla, kuhlanganiswe nokuboniswa kwemakethe, izinga lokushisa lokudubula le- kanglitai (d50=18.52um) lingu-950 ℃, bese izinga lokushisa lokudubula le-batch 1114014 (d50=13.62um) libe ngu-900 ℃.Lapho iqoqo lokugcina lokudubula lingu-1114013 (d50=15.82um), izinga lokushisa lokudubula lilungiswa libe ngu-920 ℃;Lapho ukhozi lwegolide ekugcineni lusetshenziswa ku-1122025 (d50=15.54um), izinga lokushisa lokudubula nalo liyehliswa lisuka ku-950 ℃ liye ku-920 ℃.

Isiphetho:

  1. Ukushisa okuphezulu kwe-sintering ye-zirconia kuhlobene ngokuqondile nosayizi wezinhlayiyana ezimaphakathi.Ubukhulu bezinhlayiyana bumaholoholo, kulapho izinga lokushisa le-sintering liphakama.Ngaphakathi kwebanga elithile lokusabalalisa usayizi wezinhlayiyana (13 ~ 18um), izinga lokushisa elilungile le-sintering lehla ngo-10 ℃ njalo ngokuncipha kwe-1um kusayizi wezinhlayiyana ezimaphakathi.
  2. Izinga lokushisa elishisayo le-CEP zirconium liphansi futhi umsebenzi wokusabela muhle.Umehluko kasayizi wezinhlayiyana phakathi kwe-CEP zirconium ne-zirconium yasekhaya cishe u-5 ~ 7um ezingeni lokushisa elifanayo le-sintering.

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Isikhathi sokuthumela: Jul-18-2022