Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Gelcasting method for high strength fused quartz ceramic
The invention relates to a gelcasting method for a high strength fused quartz ceramic. The method is characterized in that by taking a non-toxic substance food grade glutinous rice flour as a gel, the high strength fused quartz ceramic is prepared through size grinding, vacuum defoaming, injection molding, blank curing, blank drying and ceramic sintering. According to the fused quartz prepared by using the non-toxic gel, a crosslinking agent, an initiator and a catalyst are not needed to be added. The prepared fused quartz blank is good in uniformity and high in strength and can meet the machining requirements, and the method is suitable for preparing large-sized abnormal fused quartz ceramic parts. The three-point bending strength of the fused quartz blank can reach the highest 11.4MPa. The three-point bending strength of the fused quartz ceramic sintered at 1220-1280 DEG C can reach the highest 65.9MPa. Less cristobalite phase in the ceramic is separated out, and the performance is excellent. The method provided by the invention is environmental-friendly, simple in process and low in cost, and the prepared fused quartz blank and ceramic are excellent performance and are suitable for industrial production and popularization.
Gelcasting method for high strength fused quartz ceramic
The invention relates to a gelcasting method for a high strength fused quartz ceramic. The method is characterized in that by taking a non-toxic substance food grade glutinous rice flour as a gel, the high strength fused quartz ceramic is prepared through size grinding, vacuum defoaming, injection molding, blank curing, blank drying and ceramic sintering. According to the fused quartz prepared by using the non-toxic gel, a crosslinking agent, an initiator and a catalyst are not needed to be added. The prepared fused quartz blank is good in uniformity and high in strength and can meet the machining requirements, and the method is suitable for preparing large-sized abnormal fused quartz ceramic parts. The three-point bending strength of the fused quartz blank can reach the highest 11.4MPa. The three-point bending strength of the fused quartz ceramic sintered at 1220-1280 DEG C can reach the highest 65.9MPa. Less cristobalite phase in the ceramic is separated out, and the performance is excellent. The method provided by the invention is environmental-friendly, simple in process and low in cost, and the prepared fused quartz blank and ceramic are excellent performance and are suitable for industrial production and popularization.
Gelcasting method for high strength fused quartz ceramic
WAN WEI (Autor:in) / YANG JIAN (Autor:in) / FENG YONGBAO (Autor:in) / QIU TAI (Autor:in)
18.11.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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