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Multi-layer calcium titanate reinforced calcium hexaluminate multiphase material and preparation method thereof
The invention relates to a multi-layer calcium titanate reinforced calcium hexaluminate multiphase material and a preparation method thereof. According to the technical scheme, the method comprises the following steps: placing a titanium-iron slag block on a padding sand layer I paved by titanium-iron slag particles I, calcining for 5-8 hours in an air atmosphere at the temperature of 1560-1620 DEG C, cooling, and removing the padding sand layer I to obtain a porous block; putting the porous blocks into molten ferrotitanium slag, wherein the putting temperature ranges from 1800 DEG C to 1890 DEG C, uniformly stirring the porous blocks and cooling along with a furnace, crushing the cooling products, and obtaining compact blocks; and placing the compact block on a cushion sand layer II paved by titanium iron slag particles II, calcining for 3-5 hours in an air atmosphere at 1560-1620 DEG C, cooling, removing the cushion sand layer II, and crushing the calcined product of the compact block to obtain the multi-layer calcium titanate reinforced calcium hexaluminate multiphase material. The method is simple in process, low in production cost and environment-friendly; and the prepared product has the characteristics of low heat conductivity coefficient, high strength and good high-temperature stability.
本发明涉及一种复层型钛酸钙增强六铝酸钙复相材料及其制备方法。其技术方案是：将钛铁渣块体置于用钛铁渣颗粒I铺成的垫砂层I上，于空气气氛和1560~1620℃条件下煅烧5~8小时，冷却，舍去垫砂层I，得到多孔状块体。将多孔状块体投放到熔融状态钛铁渣中，投放温度为1800~1890℃，搅拌均匀，随炉冷却，将冷却产物破碎，得到致密块体。将致密块体置于用钛铁渣颗粒II铺成的垫砂层II上，于空气气氛和1560~1620℃条件下煅烧3~5小时，冷却，舍去垫砂层II，将所述致密块体的煅烧产物破碎，制得复层型钛酸钙增强六铝酸钙复相材料。本发明的工艺简单、生产成本低和环境友好；所制制品具有导热系数低、强度高和高温稳定性好的特点。
Multi-layer calcium titanate reinforced calcium hexaluminate multiphase material and preparation method thereof
The invention relates to a multi-layer calcium titanate reinforced calcium hexaluminate multiphase material and a preparation method thereof. According to the technical scheme, the method comprises the following steps: placing a titanium-iron slag block on a padding sand layer I paved by titanium-iron slag particles I, calcining for 5-8 hours in an air atmosphere at the temperature of 1560-1620 DEG C, cooling, and removing the padding sand layer I to obtain a porous block; putting the porous blocks into molten ferrotitanium slag, wherein the putting temperature ranges from 1800 DEG C to 1890 DEG C, uniformly stirring the porous blocks and cooling along with a furnace, crushing the cooling products, and obtaining compact blocks; and placing the compact block on a cushion sand layer II paved by titanium iron slag particles II, calcining for 3-5 hours in an air atmosphere at 1560-1620 DEG C, cooling, removing the cushion sand layer II, and crushing the calcined product of the compact block to obtain the multi-layer calcium titanate reinforced calcium hexaluminate multiphase material. The method is simple in process, low in production cost and environment-friendly; and the prepared product has the characteristics of low heat conductivity coefficient, high strength and good high-temperature stability.
本发明涉及一种复层型钛酸钙增强六铝酸钙复相材料及其制备方法。其技术方案是：将钛铁渣块体置于用钛铁渣颗粒I铺成的垫砂层I上，于空气气氛和1560~1620℃条件下煅烧5~8小时，冷却，舍去垫砂层I，得到多孔状块体。将多孔状块体投放到熔融状态钛铁渣中，投放温度为1800~1890℃，搅拌均匀，随炉冷却，将冷却产物破碎，得到致密块体。将致密块体置于用钛铁渣颗粒II铺成的垫砂层II上，于空气气氛和1560~1620℃条件下煅烧3~5小时，冷却，舍去垫砂层II，将所述致密块体的煅烧产物破碎，制得复层型钛酸钙增强六铝酸钙复相材料。本发明的工艺简单、生产成本低和环境友好；所制制品具有导热系数低、强度高和高温稳定性好的特点。
Multi-layer calcium titanate reinforced calcium hexaluminate multiphase material and preparation method thereof
一种复层型钛酸钙增强六铝酸钙复相材料及其制备方法
ZHAO HUIZHONG (author) / LI YICHONG (author) / FENG LI (author) / LIU YANLI (author)
2021-11-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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