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Method for preparing Ti2AlC complex part by combining in-situ selective laser forming with reactive sintering
The invention discloses a new method for preparing a Ti2AlC ceramic complex part by combining in-situ selective laser forming with reactive sintering. The preparation method comprises the following steps of: (1) weighing titanium powder, aluminum powder, graphite powder, titanium carbide powder and grinding balls according to the composition of Ti2AlC in a predetermined mass ratio, pouring the substances into a ball-milling tank, performing ball-milling for a period of time, and conducting drying and sieving to obtain mixed powder; (2) performing an in-situ selective laser forming process on the mixed powder to obtain a green body with a complex shape; and (3) carrying out pressureless sintering on the green body in flowing argon by adopting a high-temperature sintering furnace, and carrying out reaction to synthesize the Ti2AlC ceramic complex part. According to the method, the in-situ selective laser forming process is combined with the Ti2AlC reactive sintering process, raw materialselection and forming shapes are highly free, and a polymer binder does not need to be added.
本发明公开了一种原位激光选区成形结合反应烧结制备Ti2AlC陶瓷复杂件的新方法，包括以下步骤：(1)按照Ti2AlC的组成以预定的质量比称取钛粉、铝粉、石墨粉末、碳化钛粉末及磨球倒入球磨罐中，球磨一段时间后烘干过筛得到混合粉末；(2)将所述的混合粉末采用原位激光选区成形工艺得到复杂形状生坯；(3)采用高温烧结炉在流动的氩气中将生坯无压烧结，反应合成Ti2AlC陶瓷复杂件。本发明将原位激光选区成形工艺与Ti2AlC的反应烧结工艺相结合，原料选择及成形形状具有高度自由性，且无需添加高分子粘结剂。
Method for preparing Ti2AlC complex part by combining in-situ selective laser forming with reactive sintering
The invention discloses a new method for preparing a Ti2AlC ceramic complex part by combining in-situ selective laser forming with reactive sintering. The preparation method comprises the following steps of: (1) weighing titanium powder, aluminum powder, graphite powder, titanium carbide powder and grinding balls according to the composition of Ti2AlC in a predetermined mass ratio, pouring the substances into a ball-milling tank, performing ball-milling for a period of time, and conducting drying and sieving to obtain mixed powder; (2) performing an in-situ selective laser forming process on the mixed powder to obtain a green body with a complex shape; and (3) carrying out pressureless sintering on the green body in flowing argon by adopting a high-temperature sintering furnace, and carrying out reaction to synthesize the Ti2AlC ceramic complex part. According to the method, the in-situ selective laser forming process is combined with the Ti2AlC reactive sintering process, raw materialselection and forming shapes are highly free, and a polymer binder does not need to be added.
本发明公开了一种原位激光选区成形结合反应烧结制备Ti2AlC陶瓷复杂件的新方法，包括以下步骤：(1)按照Ti2AlC的组成以预定的质量比称取钛粉、铝粉、石墨粉末、碳化钛粉末及磨球倒入球磨罐中，球磨一段时间后烘干过筛得到混合粉末；(2)将所述的混合粉末采用原位激光选区成形工艺得到复杂形状生坯；(3)采用高温烧结炉在流动的氩气中将生坯无压烧结，反应合成Ti2AlC陶瓷复杂件。本发明将原位激光选区成形工艺与Ti2AlC的反应烧结工艺相结合，原料选择及成形形状具有高度自由性，且无需添加高分子粘结剂。
Method for preparing Ti2AlC complex part by combining in-situ selective laser forming with reactive sintering
一种原位激光选区成形结合反应烧结制备Ti2AlC复杂件的方法
LIAO WENHE (author) / LIU TINGTING (author) / ZHANG KAI (author) / ZOU ZHIYONG (author) / XIONG ZHIWEI (author) / YAN ZHILONG (author) / CHEN XIANGYUAN (author) / GU MINGFEI (author) / CHEN DAN (author)
2020-10-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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