Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Slurry for preparing compact tantalum carbide coating and sintering method
The invention provides slurry for preparing a compact tantalum carbide coating and a sintering method, and the slurry is prepared by the following steps: mixing tantalum carbide powder, a sintering aid, an adhesive and an organic solvent according to a certain mass fraction, and then mixing turbid liquid by using a ball mill to form suspension liquid; the sintering method comprises the following steps: uniformly coating the slurry on the surface of a graphite piece, then drying and curing the coating, and finally sintering the graphite piece coated with the coating. The invention aims to prepare the high-quality tantalum carbide coating slurry which is good in suspension stability, high in solid content, strong in flowability and high in coating film forming quality and does not crack after a coating is sintered by taking the tantalum carbide powder and the sintering aid as main bodies through the optimized mixed solvent. The slurry prepared by the method and the sintering process are simpler, the prepared slurry does not involve chemical reaction in the subsequent sintering process, by-products can be prevented from being generated in the chemical reaction process, and the prepared tantalum carbide coating is higher in purity and compact and flat in film crystal.
本申请提供了一种用于制备致密碳化钽涂层的浆料和烧结方法，浆料为将碳化钽粉末、烧结助剂、粘接剂与有机溶剂按照一定质量分数混合，然后用球磨仪混合悬浊液，形成悬浮液；烧结方法为先将浆料均匀涂覆在石墨件表面，再对涂层进行干燥固化，最后将覆有涂层的石墨件进行烧结。本发明的目的在于以碳化钽粉末和烧结助剂为主体，通过优化的混合溶剂，调配出悬浮稳定性好、固含量高、流动性强、涂覆成膜质量高，涂层经烧结后不龟裂的高质量碳化钽涂层浆料。该方法调配出来的浆料与烧结工艺更加简单，且调配出来的浆料在后续烧结过程中不涉及化学反应，可以避免化学反应过程中副产物产生，制备出来的碳化钽涂层纯度更高、薄膜结晶致密平整。
Slurry for preparing compact tantalum carbide coating and sintering method
The invention provides slurry for preparing a compact tantalum carbide coating and a sintering method, and the slurry is prepared by the following steps: mixing tantalum carbide powder, a sintering aid, an adhesive and an organic solvent according to a certain mass fraction, and then mixing turbid liquid by using a ball mill to form suspension liquid; the sintering method comprises the following steps: uniformly coating the slurry on the surface of a graphite piece, then drying and curing the coating, and finally sintering the graphite piece coated with the coating. The invention aims to prepare the high-quality tantalum carbide coating slurry which is good in suspension stability, high in solid content, strong in flowability and high in coating film forming quality and does not crack after a coating is sintered by taking the tantalum carbide powder and the sintering aid as main bodies through the optimized mixed solvent. The slurry prepared by the method and the sintering process are simpler, the prepared slurry does not involve chemical reaction in the subsequent sintering process, by-products can be prevented from being generated in the chemical reaction process, and the prepared tantalum carbide coating is higher in purity and compact and flat in film crystal.
本申请提供了一种用于制备致密碳化钽涂层的浆料和烧结方法，浆料为将碳化钽粉末、烧结助剂、粘接剂与有机溶剂按照一定质量分数混合，然后用球磨仪混合悬浊液，形成悬浮液；烧结方法为先将浆料均匀涂覆在石墨件表面，再对涂层进行干燥固化，最后将覆有涂层的石墨件进行烧结。本发明的目的在于以碳化钽粉末和烧结助剂为主体，通过优化的混合溶剂，调配出悬浮稳定性好、固含量高、流动性强、涂覆成膜质量高，涂层经烧结后不龟裂的高质量碳化钽涂层浆料。该方法调配出来的浆料与烧结工艺更加简单，且调配出来的浆料在后续烧结过程中不涉及化学反应，可以避免化学反应过程中副产物产生，制备出来的碳化钽涂层纯度更高、薄膜结晶致密平整。
Slurry for preparing compact tantalum carbide coating and sintering method
一种用于制备致密碳化钽涂层的浆料和烧结方法
YIN JUN (Autor:in) / LI WENXIANG (Autor:in) / JIANG WEI (Autor:in) / KANG WENYU (Autor:in) / KANG JUNYONG (Autor:in)
15.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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