Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Radiation shielding composite material and preparation method thereof
The invention relates to a radiation shielding composite material and a preparation method thereof. The technical scheme comprises that the preparation method comprises the steps: putting an aluminumborate porous ceramic block of which the porosity is 54.0-94.2 vol% and the normal-temperature compressive strength is 304.8-456.2 MPa into a boron nitride crucible; embedding with a glass shielding agent containing a radiation shielding component, putting into a vacuum furnace, vacuumizing to 1.33*10<-2> Pa or below, heating to 1000-1300 DEG C, and keeping the temperature for 30-90 min; cooling to 600-800 DEG C at the speed of 15-20 DEG C/min and cooling to 200-500 DEG C at the speed of 5-10 DEG C/min in sequence, and keeping the temperature; and cooling, cutting and polishing to obtain the radiation shielding composite material. The glass shielding agent containing the radiation shielding component is prepared by mixing boron oxide, bismuth oxide, phosphorus oxide, silicon oxide, lead oxide, barium oxide, lithium oxide and rare earth metal oxide, melting, water quenching and crushing. The prepared product is high in compressive strength, excellent in shielding performance, good in hydrothermal corrosion resistance and excellent in irradiation resistance.
本发明涉及一种辐射屏蔽复合材料及其制备方法。其技术方案是：将气孔率为54.0～94.2vol％和常温耐压强度为304.8～456.2MPa的硼酸铝多孔陶瓷块置于氮化硼坩埚中，用含辐射屏蔽成分的玻璃屏蔽剂包埋，置于真空炉中，抽真空至1.33×10Pa以下，升温至1000～1300℃，保温30～90分钟；再依次以15～20℃/min速率降温至600～800℃和5～10℃/min速率降温至200～500℃，保温；冷却，切削和抛光处理，制得辐射屏蔽复合材料。所述含辐射屏蔽成分的玻璃屏蔽剂是将氧化硼、氧化铋、氧化磷、氧化硅、氧化铅、氧化钡、氧化锂和稀土金属氧化物混合，经熔融、水淬和破碎即得。本发明所制制品耐压强度高、屏蔽性能优异、耐水热腐蚀性好和耐辐照性能优良。
Radiation shielding composite material and preparation method thereof
The invention relates to a radiation shielding composite material and a preparation method thereof. The technical scheme comprises that the preparation method comprises the steps: putting an aluminumborate porous ceramic block of which the porosity is 54.0-94.2 vol% and the normal-temperature compressive strength is 304.8-456.2 MPa into a boron nitride crucible; embedding with a glass shielding agent containing a radiation shielding component, putting into a vacuum furnace, vacuumizing to 1.33*10<-2> Pa or below, heating to 1000-1300 DEG C, and keeping the temperature for 30-90 min; cooling to 600-800 DEG C at the speed of 15-20 DEG C/min and cooling to 200-500 DEG C at the speed of 5-10 DEG C/min in sequence, and keeping the temperature; and cooling, cutting and polishing to obtain the radiation shielding composite material. The glass shielding agent containing the radiation shielding component is prepared by mixing boron oxide, bismuth oxide, phosphorus oxide, silicon oxide, lead oxide, barium oxide, lithium oxide and rare earth metal oxide, melting, water quenching and crushing. The prepared product is high in compressive strength, excellent in shielding performance, good in hydrothermal corrosion resistance and excellent in irradiation resistance.
本发明涉及一种辐射屏蔽复合材料及其制备方法。其技术方案是：将气孔率为54.0～94.2vol％和常温耐压强度为304.8～456.2MPa的硼酸铝多孔陶瓷块置于氮化硼坩埚中，用含辐射屏蔽成分的玻璃屏蔽剂包埋，置于真空炉中，抽真空至1.33×10Pa以下，升温至1000～1300℃，保温30～90分钟；再依次以15～20℃/min速率降温至600～800℃和5～10℃/min速率降温至200～500℃，保温；冷却，切削和抛光处理，制得辐射屏蔽复合材料。所述含辐射屏蔽成分的玻璃屏蔽剂是将氧化硼、氧化铋、氧化磷、氧化硅、氧化铅、氧化钡、氧化锂和稀土金属氧化物混合，经熔融、水淬和破碎即得。本发明所制制品耐压强度高、屏蔽性能优异、耐水热腐蚀性好和耐辐照性能优良。
Radiation shielding composite material and preparation method thereof
一种辐射屏蔽复合材料及其制备方法
LI YUANBING (Autor:in) / DONG CHENG (Autor:in) / LUO HAN (Autor:in) / JIA WENBAO (Autor:in) / LI SHUJING (Autor:in) / CHEN RUOYU (Autor:in) / XIANG RUOFEI (Autor:in)
29.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C03C
Chemische Zusammensetzungen für Gläser, Glasuren oder Emails
,
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
/
G21F
Schutz gegen Röntgenstrahlung, Gammastrahlung, Korpuskularstrahlung oder Teilchenbeschuss
,
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
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