Preparation method of slip-cast M-Sialon combined silicon carbide ceramic riser tube
A technology of silicon carbide ceramics and grouting molding, which is applied in the field of ceramic material preparation, can solve the problems of not meeting the production needs, short service life, high price, etc., and achieve the effect of improving service life, improving thermal shock resistance, and tight combination
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[0015] Example 1
[0016] (1) Preparation of mixed powder: Alumina powder with a particle size of 0.5μm: a quartz glass powder with a particle size of 0.5μm: a metal aluminum powder with a particle size of 3μm: a metal silicon powder with a particle size of 3μm in a weight percentage of 10:40 : The ratio of 25:25 plus 1% yttrium dioxide of the total weight of the above four components is uniformly mixed to form a mixed powder;
[0017] (2) Preparation of mixed solution: Aluminium sol with 30% alumina content: silica sol with 30% silica content: water in a weight percentage of 10:10:80 uniformly mixed to form a mixed solution;
[0018] (3) Preparation of the mixed slurry: the mixed powder: silicon carbide powder: the mixed solution is uniformly mixed with a weight percentage of 60:10:30 to make a mixed slurry, wherein the particle size of the silicon carbide powder is 3 μm;
[0019] (4) Preparation of grouting molding M-sialon combined with silicon carbide ceramic riser body: the mixed...
Example Embodiment
[0021] Example 2
[0022] (1) Preparation of mixed powder: Alumina powder with a particle size of 1.5μm: a quartz glass powder with a particle size of 1.5μm: a metal aluminum powder with a particle size of 10μm: a metal silicon powder with a particle size of 10μm and the weight percentage is 20:50 :15:15 plus 8% yttrium dioxide of the total weight of the above four components and uniformly mixed to make a mixed powder;
[0023] (2) Preparation of mixed solution: Aluminium sol with 20% alumina content: silica sol with 20% silica content: water is uniformly mixed with a weight percentage of 28:28:44 to make a mixed solution;
[0024] (3) Preparation of the mixed slurry: the mixed powder: silicon carbide powder: the mixed solution is uniformly mixed with a weight percentage of 40:20:40 to make a mixed slurry, wherein the particle size of the silicon carbide powder is 1mm;
[0025] (4) Preparation of grouting molding M-sialon combined with silicon carbide ceramic riser body: the mixed slu...
Example Embodiment
[0027] Example 3
[0028] (1) Preparation of mixed powder: Alumina powder with a particle size of 3μm: Quartz glass powder with a particle size of 3μm: Aluminium metal powder with a particle size of 20μm: Metal silicon powder with a particle size of 20μm with a weight percentage of 30: 60: 5 : The ratio of 5 plus 15% yttrium dioxide of the total weight of the above four components is uniformly mixed to form a mixed powder;
[0029] (2) Preparation of mixed solution: Aluminium sol with 10% alumina content: silica sol with 10% silica content: water is uniformly mixed with a weight percentage of 45:45:10 to make a mixed solution;
[0030] (3) Preparation of the mixed slurry: the mixed powder: silicon carbide powder: the mixed solution is uniformly mixed with a weight percentage of 20: 30: 50 to make a mixed slurry, wherein the particle size of the silicon carbide powder is 2 mm;
[0031] (4) Preparation of grouting molding M-sialon combined with silicon carbide ceramic riser body: the mi...
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