一种粉末冶金法制备SnO2@In2O3增强银基复合材料的方法

Silver-based composite materials with SnO2@In2O3 core-shell structure were prepared by powder metallurgy, which improved the interfacial wettability and suppressed SnO2 flotation, solved the problems of insufficient electrical contact performance and corrosion resistance of existing silver-based composite materials, and achieved high corrosion resistance and high tensile strength of the material.

CN118326190BActive Publication Date: 2026-07-17SICHUAN ZHIQI PRECIOUS METALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN ZHIQI PRECIOUS METALS CO LTD
Filing Date
2024-05-11
Publication Date
2026-07-17

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Abstract

本发明涉及电子信息产业新材料技术领域，公开了一种粉末冶金法制备SnO2@In2O3增强银基复合材料的方法，包括以下步骤：S1、使用市售SnO2粉体为原料，通过电解法与烧结法组合制取SnO2@In2O3粉；S2、将S1中的SnO2@In2O3粉料与Ag粉混合，通过球磨制取复合粉体；S3、将S2中的复合粉体以压制成形，并将成形锭坯放入烧结炉中烧结，获得SnO2@In2O3增强银基复合材料烧结坯；最后对该烧结坯挤压拉拔或轧制制备成丝材或带材；本发明制备了一种SnO2@In2O3核壳结构的金属氧化物增强银基复合材料，并通过壳In2O3作为SnO2与银的连接界面，改善SnO2与银的界面润湿性，使得该材料具有良好的加工性能；并在电弧侵蚀过程中，能够有效抑制SnO2在熔池中的上浮，极大的改善了AgSnO2使用过程中由于SnO2上浮造成的温升问题。
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