Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Toughened aluminum oxide ceramic and preparation method thereof
The invention discloses toughened aluminum oxide ceramic and a preparation method of the toughened aluminum oxide ceramic. The invention relates to the technical field of alumina ceramics, and relates to the technical field of alumina ceramics. The alumina ceramics comprise, by weight, 2-6 parts of clay, 20-30 parts of nano aluminum powder, 70-90 parts of alumina powder, 8-12 parts of concentrated sulfuric acid, 8-12 parts of microcrystalline cellulose, 3-4 parts of a sintering aid, 3-4 parts of quartz, 3-4 parts of calcite, 12-16 parts of graphene and 5-7 parts of a binder. A compression molding method is adopted, nanofibers are evenly added into a ceramic material, the nanofibers serve as a toughening phase of a matrix, the fracture toughness and the relative strength of the composite material are remarkably enhanced, and when fiber-reinforced ceramic is fractured, through pulling-out, bridging, debonding and fracture of the fibers, the strength of the composite material is greatly improved. And the surface energy increment during fracture is improved in manners of micronization, bending, deflection and the like of cracks, so that the toughness is improved.
本发明公开了一种增韧氧化铝陶瓷及其制备方法，括以下重量份组成，粘土2‑6重量份、纳米铝粉20‑30重量份、氧化铝粉70‑90重量份、浓硫酸8‑12重量份、微晶纤维素8‑12重量份、烧结助剂3‑4重量份、石英3‑4重量份、方解石3‑4重量份、石墨烯12‑16重量份和粘结剂5‑7重量份，本发明涉及氧化铝陶瓷技术领域。采用压制成型方法，将纳米纤维均匀添加到陶瓷材料中，其中纳米纤维作为基体的增韧相，显著增强了复合材料的断裂韧性和相对强度，纤维增强陶瓷断裂时通过纤维的拔出、桥联、脱粘和断裂，以及裂纹的微化、弯曲和偏转等方式提升其断裂时的表面能增量，从而使韧性得到提高。
Toughened aluminum oxide ceramic and preparation method thereof
The invention discloses toughened aluminum oxide ceramic and a preparation method of the toughened aluminum oxide ceramic. The invention relates to the technical field of alumina ceramics, and relates to the technical field of alumina ceramics. The alumina ceramics comprise, by weight, 2-6 parts of clay, 20-30 parts of nano aluminum powder, 70-90 parts of alumina powder, 8-12 parts of concentrated sulfuric acid, 8-12 parts of microcrystalline cellulose, 3-4 parts of a sintering aid, 3-4 parts of quartz, 3-4 parts of calcite, 12-16 parts of graphene and 5-7 parts of a binder. A compression molding method is adopted, nanofibers are evenly added into a ceramic material, the nanofibers serve as a toughening phase of a matrix, the fracture toughness and the relative strength of the composite material are remarkably enhanced, and when fiber-reinforced ceramic is fractured, through pulling-out, bridging, debonding and fracture of the fibers, the strength of the composite material is greatly improved. And the surface energy increment during fracture is improved in manners of micronization, bending, deflection and the like of cracks, so that the toughness is improved.
本发明公开了一种增韧氧化铝陶瓷及其制备方法，括以下重量份组成，粘土2‑6重量份、纳米铝粉20‑30重量份、氧化铝粉70‑90重量份、浓硫酸8‑12重量份、微晶纤维素8‑12重量份、烧结助剂3‑4重量份、石英3‑4重量份、方解石3‑4重量份、石墨烯12‑16重量份和粘结剂5‑7重量份，本发明涉及氧化铝陶瓷技术领域。采用压制成型方法，将纳米纤维均匀添加到陶瓷材料中，其中纳米纤维作为基体的增韧相，显著增强了复合材料的断裂韧性和相对强度，纤维增强陶瓷断裂时通过纤维的拔出、桥联、脱粘和断裂，以及裂纹的微化、弯曲和偏转等方式提升其断裂时的表面能增量，从而使韧性得到提高。
Toughened aluminum oxide ceramic and preparation method thereof
一种增韧氧化铝陶瓷及其制备方法
27.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
Zirconium oxide toughened aluminum oxide ceramic plate and preparation method thereof
| Europäisches Patentamt | 2021
Zirconium oxide toughened aluminum oxide composite ceramic material and preparation method thereof
| Europäisches Patentamt | 2021
Preparation method of toughened aluminum oxide ceramic body
| Europäisches Patentamt | 2022
Preparation method of graphene toughened aluminum oxide composite ceramic
| Europäisches Patentamt | 2022