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Ceramic material and preparation method thereof
The invention discloses a ceramic material and a preparation method thereof and belongs to the technical field of electronic information functional materials and devices. The ceramic material is formed by principal crystalline phase materials and doped phase materials through ball milling, mixing, pre-sintering, dry pressing and sintering. The ceramic material is prepared from, by mass, 82%-93% of Mg2SiO4, 5.4%-16.4% of borosilicate glass, 1%-3% of Al2O3, 0.3%-2% of ZnO and 0.3%-2% of La2O3, wherein Mg2SiO4 serves as the principal crystalline phase, and borosilicate glass, Al2O3, ZnO and La2O3 serve as the doped phase. Compared with similar ceramic materials in the prior art, the ceramic material has excellent performance, the ceramic forming density rho is 2.8 g/cm<3>, the dielectric constant epsilon r is low and smaller than 7.0, the bending strength is high and larger than 180 MPa, the good thermal property is achieved, and heat conductivity is larger than 5 w/m.k. The process is simple, price is low, production repetition performance is good, and high strength and low cost production of a magnesium silicate ceramic substrate material becomes possible.
Ceramic material and preparation method thereof
The invention discloses a ceramic material and a preparation method thereof and belongs to the technical field of electronic information functional materials and devices. The ceramic material is formed by principal crystalline phase materials and doped phase materials through ball milling, mixing, pre-sintering, dry pressing and sintering. The ceramic material is prepared from, by mass, 82%-93% of Mg2SiO4, 5.4%-16.4% of borosilicate glass, 1%-3% of Al2O3, 0.3%-2% of ZnO and 0.3%-2% of La2O3, wherein Mg2SiO4 serves as the principal crystalline phase, and borosilicate glass, Al2O3, ZnO and La2O3 serve as the doped phase. Compared with similar ceramic materials in the prior art, the ceramic material has excellent performance, the ceramic forming density rho is 2.8 g/cm<3>, the dielectric constant epsilon r is low and smaller than 7.0, the bending strength is high and larger than 180 MPa, the good thermal property is achieved, and heat conductivity is larger than 5 w/m.k. The process is simple, price is low, production repetition performance is good, and high strength and low cost production of a magnesium silicate ceramic substrate material becomes possible.
Ceramic material and preparation method thereof
SUN CHENGLI (author) / ZHOU XIAOHUA (author) / LI ENZHU (author) / ZHANG SHUREN (author) / TANG BIN (author)
2016-02-24
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Ceramic/ceramic bulletproof material and preparation method thereof
| European Patent Office | 2021