Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Binder for silicon carbide ceramic online reaction joint and preparation method thereof
The invention discloses a binder for silicon carbide ceramic online reaction joint and a preparation method thereof. The composition of the binder for silicon carbide ceramic online reaction joint comprises the following components in percentage by weight: 25-35% of water, 5-7% of polyacrylamide, 1-2% of adhesive, 30-45% of silicon carbide micro-powder, 10-20% of silicon powder and 5-8% of carbon powder. The method comprises the following steps: (1) adding polyacrylamide in water, stirring to adequately dissolve polyacrylamide, and then adding the adhesive to prepare polyacrylamide solution; (2) sequentially adding Si powder, C powder and the silicon carbide micro-powder in the polyacrylamide solution to prepare slurry; (3) carrying out ball-milling on the slurry to obtain the binder. The binder disclosed by the invention has the same ingredients with a blank, thus avoiding the sintering deformation due to non-uniform ingredients; the solid content is proper, thus ensuring the flowability of the slurry; the water amount is proper, thus avoiding the reduction of a binding effect due to the too fast slurry absorption of the blank; moreover, the silicon powder and the carbon powder are added in the binder according to stoichiometric ratio, thus avoiding carbon enrichment or silicon enrichment in the sintered products.
Binder for silicon carbide ceramic online reaction joint and preparation method thereof
The invention discloses a binder for silicon carbide ceramic online reaction joint and a preparation method thereof. The composition of the binder for silicon carbide ceramic online reaction joint comprises the following components in percentage by weight: 25-35% of water, 5-7% of polyacrylamide, 1-2% of adhesive, 30-45% of silicon carbide micro-powder, 10-20% of silicon powder and 5-8% of carbon powder. The method comprises the following steps: (1) adding polyacrylamide in water, stirring to adequately dissolve polyacrylamide, and then adding the adhesive to prepare polyacrylamide solution; (2) sequentially adding Si powder, C powder and the silicon carbide micro-powder in the polyacrylamide solution to prepare slurry; (3) carrying out ball-milling on the slurry to obtain the binder. The binder disclosed by the invention has the same ingredients with a blank, thus avoiding the sintering deformation due to non-uniform ingredients; the solid content is proper, thus ensuring the flowability of the slurry; the water amount is proper, thus avoiding the reduction of a binding effect due to the too fast slurry absorption of the blank; moreover, the silicon powder and the carbon powder are added in the binder according to stoichiometric ratio, thus avoiding carbon enrichment or silicon enrichment in the sintered products.
Binder for silicon carbide ceramic online reaction joint and preparation method thereof
HUO YANLI (Autor:in) / LIU HAILIN (Autor:in) / WANG CHUNPENG (Autor:in) / CHEN SHUGUANG (Autor:in)
08.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Preparation method of binder jet printing silicon carbide ceramic material
| Europäisches Patentamt | 2022
Catalytic reaction sintered silicon carbide ceramic and preparation method thereof
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023
Fully-compact binder-free tungsten carbide ceramic and preparation method thereof
| Europäisches Patentamt | 2022
Silicon carbide ceramic and preparation method thereof
| Europäisches Patentamt | 2024