A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a preparation method of a low-sodium aluminum oxide ceramic substrate, which comprises the following preparation steps: S1, mixing the following raw materials in parts by weight: 40-50 parts of filling auxiliary material powder, 70-85 parts of low-sodium aluminum oxide powder, 2-3 parts of organic solvent, 3-4 parts of dispersing agent and 3-5 parts of plasticizer according to a mass ratio, then adding polyvinyl butyral balls, grinding, and uniformly mixing, performing extrusion forming under the pressure of 100-130 MPa to obtain a prefabricated blank body; s2, the prefabricated blank is sintered in the oxygen atmosphere, the oxygen pressure ranges from 5 MPa to 10 MPa, the sintering temperature ranges from 1400 DEG C to 1600 DEG C, the sintering time ranges from 3 h to 5 h, and the low-sodium aluminum oxide ceramic substrate is obtained. According to the method, the filling auxiliary material powder and the low-sodium aluminum oxide powder are prepared separately and then mixed, the low-sodium aluminum oxide ceramic substrate is prepared through the steps of extrusion forming, sintering and the like, and the low-sodium aluminum oxide ceramic substrate prepared through the method has high compressive strength, high volume density and low sodium content.
本发明公开了一种低钠氧化铝陶瓷基板的制备方法，包括如下制备步骤：S1：将按重量份数计的如下原料40‑50份填充辅料粉、70‑85低钠氧化铝粉以质量比、2‑3份有机溶剂、3‑4份分散剂和3‑5份增塑剂混合，然后加入称聚乙烯缩丁醛球研磨混匀，在100‑130MPa的压力下挤压成型，得到预制胚体；S2:将预制胚体在氧气氛围下烧结，氧气压力为5‑10MPa，烧结温度为1400‑1600℃，烧结时间为3‑5h，获得低钠氧化铝陶瓷基板。首先分开制备填充辅料粉和低钠氧化铝粉，然后再将二者进行混合，并通过挤压成型、烧结等步骤完成低钠氧化铝陶瓷基板的制备，通过上述方式制备的低钠氧化铝陶瓷基板具有较高的抗压强度、较高的体积密度以及较低的含钠量。
The invention discloses a preparation method of a low-sodium aluminum oxide ceramic substrate, which comprises the following preparation steps: S1, mixing the following raw materials in parts by weight: 40-50 parts of filling auxiliary material powder, 70-85 parts of low-sodium aluminum oxide powder, 2-3 parts of organic solvent, 3-4 parts of dispersing agent and 3-5 parts of plasticizer according to a mass ratio, then adding polyvinyl butyral balls, grinding, and uniformly mixing, performing extrusion forming under the pressure of 100-130 MPa to obtain a prefabricated blank body; s2, the prefabricated blank is sintered in the oxygen atmosphere, the oxygen pressure ranges from 5 MPa to 10 MPa, the sintering temperature ranges from 1400 DEG C to 1600 DEG C, the sintering time ranges from 3 h to 5 h, and the low-sodium aluminum oxide ceramic substrate is obtained. According to the method, the filling auxiliary material powder and the low-sodium aluminum oxide powder are prepared separately and then mixed, the low-sodium aluminum oxide ceramic substrate is prepared through the steps of extrusion forming, sintering and the like, and the low-sodium aluminum oxide ceramic substrate prepared through the method has high compressive strength, high volume density and low sodium content.
本发明公开了一种低钠氧化铝陶瓷基板的制备方法，包括如下制备步骤：S1：将按重量份数计的如下原料40‑50份填充辅料粉、70‑85低钠氧化铝粉以质量比、2‑3份有机溶剂、3‑4份分散剂和3‑5份增塑剂混合，然后加入称聚乙烯缩丁醛球研磨混匀，在100‑130MPa的压力下挤压成型，得到预制胚体；S2:将预制胚体在氧气氛围下烧结，氧气压力为5‑10MPa，烧结温度为1400‑1600℃，烧结时间为3‑5h，获得低钠氧化铝陶瓷基板。首先分开制备填充辅料粉和低钠氧化铝粉，然后再将二者进行混合，并通过挤压成型、烧结等步骤完成低钠氧化铝陶瓷基板的制备，通过上述方式制备的低钠氧化铝陶瓷基板具有较高的抗压强度、较高的体积密度以及较低的含钠量。
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