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有色金属(冶炼部分):2024,(5):100-104
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烧结法制备Al-Ti-B中间合金粉体
王开, 张念炳, 甄晓峰, 曾令鹤
(贵州师范大学 材料与建筑工程学院)
Preparation of Al-Ti-B Intermediate Alloy Powder by Sintering Method
WANG Kai, ZHANG Nianbing, ZHEN Xiaofeng, ZENG Linghe
(College of Material and Civil Engineering,Guizhou Normal University)
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投稿时间:2023-11-27     修订日期:2023-12-04     录用日期:2023-12-12     网络发布日期:2024-04-16
中文摘要: 采用TiO2粉、CaO、Al粉和B2O3为原料,经混匀、压片、烧结后,制备出了Al-Ti-B中间合金粉末。利用XRD、SEM-EDS、XPS等表征手段,对烧结产物的物相组成、微观形貌和原子价态进行分析。结果表明,在钙铝比1.6、钛硼比5、1 485 ℃烧结20 min的条件下,烧结产物的主要物相为Al3Ti、TiB2、Al、CaAl4O7和CaAl2O4;烧结产物中Al3Ti成块状,TiB2成小颗粒状,两者均匀分布在铝基体中;TiO2在反应中存在逐级还原的现象。烧结法可以制备出Al-Ti-B中间合金粉体。
中文关键词: Al-Ti-B中间合金  Al3Ti相  TiB2相  烧结法
Abstract:Applying TiO2 powder, CaO powder, Al powder and B2O3 as raw materials, Al-Ti-B intermediate alloy powder was prepared by mixing, pressing and sintering. The physical phase composition, microscopic morphology and atomic valence states of the sintered products were analyzed by XRD, SEM-EDS and XPS characterization. The results show that the main phases of the sintered products are Al3Ti, TiB2, Al, CaAl4O7 and CaAl2O4 under the conditions including sintering temperature of 1 485 ℃, sintering time of 20 min, Ca/Al ratio of 1.6, and Ti/B ratio of 5. In the sintered products, Al3Ti and TiB2 are formed into blocky and small particles, which are uniformly distributed in the aluminum matrix. TiO2 has the phenomenon of step reduction in the reaction. Al-Ti-B intermediate alloy powder can be prepared by sintering method.
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基金项目:贵州省科技计划项目(黔科合基础-ZK[2021]重点056)
引用文本:
王开,张念炳,甄晓峰,曾令鹤.烧结法制备Al-Ti-B中间合金粉体[J].有色金属(冶炼部分),2024(5):100-104.
WANG Kai,ZHANG Nianbing,ZHEN Xiaofeng,ZENG Linghe.Preparation of Al-Ti-B Intermediate Alloy Powder by Sintering Method[J].Nonferrous Metals (Extractive Metallurgy),2024(5):100-104.

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