Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Aluminum oxide ceramic material with high strength, high toughness and high thermal conductivity as well as preparation method and application of aluminum oxide ceramic material
The invention discloses an aluminum oxide ceramic material with high strength, high toughness and high thermal conductivity as well as a preparation method and application thereof, and relates to the technical field of aluminum oxide ceramic materials. The aluminum oxide ceramic material is prepared from composite powder, and is characterized in that the composite powder is prepared from the following components in percentage by mass: 88 to 97.8 percent of Al2O3-La2O3 composition, 1 to 2 percent of Nb2O5, 0 to 6 percent of CeO2, 0.5 to 1 percent of CaO, 0.5 to 2 percent of SiO2 and 0.2 to 1 percent of MgO. According to the invention, Nb2O5, CeO2, CaO, SiO2 and MgO are added into lanthanum oxide doped aluminum oxide, and the density, bending strength, fracture toughness and thermal conductivity of the ceramic substrate prepared under a specific sintering process are not lower than 98%, 450 MPa, 5 MPa.m<1/2> and 23 W/(mK), respectively. Therefore, the aluminum oxide ceramic substrate prepared by the embodiment of the invention meets the requirements of high strength, high toughness and high thermal conductivity of the electronic device, and can be widely applied to electronic device substrates.
本发明公开了一种高强度高韧性高热导的氧化铝陶瓷材料及其制备方法和应用，涉及氧化铝陶瓷材料技术领域。其中，所述氧化铝陶瓷材料由复合粉体制备得到，其特征在于，以质量分数计，所述复合粉体包括：Al2O3‑La2O3组合物88‑97.8％、Nb2O51‑2％、CeO20‑6％、CaO0.5‑1％、SiO20.5‑2％、MgO0.2‑1％。本发明通过在氧化镧掺杂的氧化铝中加入Nb2O5、CeO2、CaO、SiO2、MgO，并在特定的烧结工艺下制得的陶瓷基板的致密度、弯曲强度、断裂韧性和热导率，分别不低于98％、450MPa、5MPa·m1/2、23W/(mK)。因此，本发明实施例制备得到的陶瓷基板满足电子器件的高强度、高韧性以及高热导需求，能够广泛应用在电子器件基板中。
Aluminum oxide ceramic material with high strength, high toughness and high thermal conductivity as well as preparation method and application of aluminum oxide ceramic material
The invention discloses an aluminum oxide ceramic material with high strength, high toughness and high thermal conductivity as well as a preparation method and application thereof, and relates to the technical field of aluminum oxide ceramic materials. The aluminum oxide ceramic material is prepared from composite powder, and is characterized in that the composite powder is prepared from the following components in percentage by mass: 88 to 97.8 percent of Al2O3-La2O3 composition, 1 to 2 percent of Nb2O5, 0 to 6 percent of CeO2, 0.5 to 1 percent of CaO, 0.5 to 2 percent of SiO2 and 0.2 to 1 percent of MgO. According to the invention, Nb2O5, CeO2, CaO, SiO2 and MgO are added into lanthanum oxide doped aluminum oxide, and the density, bending strength, fracture toughness and thermal conductivity of the ceramic substrate prepared under a specific sintering process are not lower than 98%, 450 MPa, 5 MPa.m<1/2> and 23 W/(mK), respectively. Therefore, the aluminum oxide ceramic substrate prepared by the embodiment of the invention meets the requirements of high strength, high toughness and high thermal conductivity of the electronic device, and can be widely applied to electronic device substrates.
本发明公开了一种高强度高韧性高热导的氧化铝陶瓷材料及其制备方法和应用，涉及氧化铝陶瓷材料技术领域。其中，所述氧化铝陶瓷材料由复合粉体制备得到，其特征在于，以质量分数计，所述复合粉体包括：Al2O3‑La2O3组合物88‑97.8％、Nb2O51‑2％、CeO20‑6％、CaO0.5‑1％、SiO20.5‑2％、MgO0.2‑1％。本发明通过在氧化镧掺杂的氧化铝中加入Nb2O5、CeO2、CaO、SiO2、MgO，并在特定的烧结工艺下制得的陶瓷基板的致密度、弯曲强度、断裂韧性和热导率，分别不低于98％、450MPa、5MPa·m1/2、23W/(mK)。因此，本发明实施例制备得到的陶瓷基板满足电子器件的高强度、高韧性以及高热导需求，能够广泛应用在电子器件基板中。
Aluminum oxide ceramic material with high strength, high toughness and high thermal conductivity as well as preparation method and application of aluminum oxide ceramic material
高强度高韧性高热导的氧化铝陶瓷材料及其制备方法和应用
WU SHANGHUA (Autor:in) / WU HAOLIN (Autor:in) / LI YEHUA (Autor:in) / LIU LEIREN (Autor:in)
09.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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