Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polyvinyl butyral solution bonded lead oxide ceramic for solid oxygen control and preparation method of polyvinyl butyral solution bonded lead oxide ceramic
The invention discloses polyvinyl butyral solution bonded lead oxide ceramic for solid oxygen control and a preparation method of the polyvinyl butyral solution bonded lead oxide ceramic, and belongs to the technical field of metal ceramics. The polyvinyl butyral solution bonded lead oxide ceramic comprises PbO and a polyvinyl butyral solution, based on PbO, more than 0 wt% and less than or equal to 6 wt% of a polyvinyl butyral solution is added; the preparation method comprises the following steps: fully mixing the polyvinyl butyral solution and PbO, and uniformly grinding to obtain a mixture; pre-pressing the obtained mixture to obtain a green body, re-crushing, uniformly grinding and sieving to obtain mixed powder, placing the mixed powder in a metal mold, and pressurizing, maintaining and releasing the pressure to obtain a ceramic pressed blank; subjecting the ceramic pressed blank to glue discharging; and finally sintering and cooling to obtain the lead oxide ceramic. The lead oxide ceramic has high hardness, three-point bending strength and density and good micromorphology, can keep shape integrity under the working condition of high-temperature flow scouring of a fourth-generation lead-based fast neutron reactor, and meets the requirement of solid oxygen control.
本发明公开了属于金属陶瓷技术领域的一种用于固态氧控的聚乙烯醇缩丁醛溶液粘结氧化铅陶瓷及其制备方法，包括PbO和聚乙烯醇缩丁醛溶液；以PbO计，添加大于0且小于等于6wt％的聚乙烯醇缩丁醛溶液；其制备方法为：聚乙烯醇缩丁醛溶液和PbO充分混合、研磨均匀，得到混合物；所得混合物经预压制得到坯体后，重新粉碎，研磨均匀后过筛，得到混合粉末后置于金属模具中加压、保压与泄压后得到陶瓷压坯；将陶瓷压坯进行排胶；最后进行烧结，冷却后得氧化铅陶瓷。所述氧化铅陶瓷具备高硬度、三点弯曲强度和致密度，微观形态良好，在第四代铅基快中子反应堆高温流动冲刷工况下能保持形状的完整性，满足固态氧控的需求。
Polyvinyl butyral solution bonded lead oxide ceramic for solid oxygen control and preparation method of polyvinyl butyral solution bonded lead oxide ceramic
The invention discloses polyvinyl butyral solution bonded lead oxide ceramic for solid oxygen control and a preparation method of the polyvinyl butyral solution bonded lead oxide ceramic, and belongs to the technical field of metal ceramics. The polyvinyl butyral solution bonded lead oxide ceramic comprises PbO and a polyvinyl butyral solution, based on PbO, more than 0 wt% and less than or equal to 6 wt% of a polyvinyl butyral solution is added; the preparation method comprises the following steps: fully mixing the polyvinyl butyral solution and PbO, and uniformly grinding to obtain a mixture; pre-pressing the obtained mixture to obtain a green body, re-crushing, uniformly grinding and sieving to obtain mixed powder, placing the mixed powder in a metal mold, and pressurizing, maintaining and releasing the pressure to obtain a ceramic pressed blank; subjecting the ceramic pressed blank to glue discharging; and finally sintering and cooling to obtain the lead oxide ceramic. The lead oxide ceramic has high hardness, three-point bending strength and density and good micromorphology, can keep shape integrity under the working condition of high-temperature flow scouring of a fourth-generation lead-based fast neutron reactor, and meets the requirement of solid oxygen control.
本发明公开了属于金属陶瓷技术领域的一种用于固态氧控的聚乙烯醇缩丁醛溶液粘结氧化铅陶瓷及其制备方法，包括PbO和聚乙烯醇缩丁醛溶液；以PbO计，添加大于0且小于等于6wt％的聚乙烯醇缩丁醛溶液；其制备方法为：聚乙烯醇缩丁醛溶液和PbO充分混合、研磨均匀，得到混合物；所得混合物经预压制得到坯体后，重新粉碎，研磨均匀后过筛，得到混合粉末后置于金属模具中加压、保压与泄压后得到陶瓷压坯；将陶瓷压坯进行排胶；最后进行烧结，冷却后得氧化铅陶瓷。所述氧化铅陶瓷具备高硬度、三点弯曲强度和致密度，微观形态良好，在第四代铅基快中子反应堆高温流动冲刷工况下能保持形状的完整性，满足固态氧控的需求。
Polyvinyl butyral solution bonded lead oxide ceramic for solid oxygen control and preparation method of polyvinyl butyral solution bonded lead oxide ceramic
一种用于固态氧控的聚乙烯醇缩丁醛溶液粘结氧化铅陶瓷及其制备方法
NIU FENGLEI (Autor:in) / WANG YIFENG (Autor:in) / XU YUHENG (Autor:in) / LI XIAOBO (Autor:in) / LIANG RUIXIAN (Autor:in) / ZHU HUIPING (Autor:in) / LIU FANG (Autor:in)
04.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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