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Novel fiber toughened alumina ceramic and preparation method thereof
The invention relates to the technical field of alumina ceramics, and discloses a novel fiber toughened alumina ceramic. The novel fiber toughened alumina ceramic comprises the following components in parts by weight: 70-90 parts of alpha-alumina, 20-30 parts of titanium dioxide, 20-30 parts of mullite fiber, 5-10 parts of a dispersant, 3-7 parts of a sintering aid, 2-5 parts of a lubricant, 2-5 parts of a plasticizer and 1-3 parts of a binder. The toughness of the mullite fibers is improved by soaking and modifying the mullite fibers, and the modified mullite fibers are pre-laid to form an effective toughened whole, so that the overall toughness is greatly enhanced after the alumina ceramic is fired, and in the preparation process, a combined dispersing agent is adopted, so that the toughness of the alumina ceramic is greatly improved. The dispersing effect of the alpha-aluminum oxide powder is further enhanced, the alpha-aluminum oxide powder can enter the mold conveniently, and through cooperation of the lubricating agent and the binding agent, forming and firing of the blank are facilitated.
本发明涉及氧化铝陶瓷技术领域，且公开了一种新型纤维增韧氧化铝陶瓷，所述新型纤维增韧氧化铝陶瓷的组分按重量份数排列如下：α‑氧化铝70‑90份、二氧化钛20‑30份、莫来石纤维20‑30份、分散剂5‑10份、烧结助剂3‑7份、润滑剂2‑5份、增塑剂2‑5份、粘结剂1‑3份。本发明通过将莫来石纤维进行浸泡和改性，提升莫来石纤维的韧性，并且通过将改性后的莫来石纤维进行预铺设，形成有效增韧整体，从而在氧化铝陶瓷烧制后，整体的韧性得到大幅度增强，并在制备的过程中，采用组合型分散剂，进一步加强α‑氧化铝粉末的分散效果，方便α‑氧化铝粉末进入模具中，并通过润滑剂和粘结剂的配合，方便胚体的成型与烧制。
Novel fiber toughened alumina ceramic and preparation method thereof
The invention relates to the technical field of alumina ceramics, and discloses a novel fiber toughened alumina ceramic. The novel fiber toughened alumina ceramic comprises the following components in parts by weight: 70-90 parts of alpha-alumina, 20-30 parts of titanium dioxide, 20-30 parts of mullite fiber, 5-10 parts of a dispersant, 3-7 parts of a sintering aid, 2-5 parts of a lubricant, 2-5 parts of a plasticizer and 1-3 parts of a binder. The toughness of the mullite fibers is improved by soaking and modifying the mullite fibers, and the modified mullite fibers are pre-laid to form an effective toughened whole, so that the overall toughness is greatly enhanced after the alumina ceramic is fired, and in the preparation process, a combined dispersing agent is adopted, so that the toughness of the alumina ceramic is greatly improved. The dispersing effect of the alpha-aluminum oxide powder is further enhanced, the alpha-aluminum oxide powder can enter the mold conveniently, and through cooperation of the lubricating agent and the binding agent, forming and firing of the blank are facilitated.
本发明涉及氧化铝陶瓷技术领域，且公开了一种新型纤维增韧氧化铝陶瓷，所述新型纤维增韧氧化铝陶瓷的组分按重量份数排列如下：α‑氧化铝70‑90份、二氧化钛20‑30份、莫来石纤维20‑30份、分散剂5‑10份、烧结助剂3‑7份、润滑剂2‑5份、增塑剂2‑5份、粘结剂1‑3份。本发明通过将莫来石纤维进行浸泡和改性，提升莫来石纤维的韧性，并且通过将改性后的莫来石纤维进行预铺设，形成有效增韧整体，从而在氧化铝陶瓷烧制后，整体的韧性得到大幅度增强，并在制备的过程中，采用组合型分散剂，进一步加强α‑氧化铝粉末的分散效果，方便α‑氧化铝粉末进入模具中，并通过润滑剂和粘结剂的配合，方便胚体的成型与烧制。
Novel fiber toughened alumina ceramic and preparation method thereof
一种新型纤维增韧氧化铝陶瓷及其制备方法
MIN JIAWEI (Autor:in) / MIN LIJIE (Autor:in) / LI XIUYING (Autor:in)
14.10.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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