Low-dielectric wollastonite series low-temperature co-fired ceramic material and preparation method thereof
A technology of low-temperature co-fired ceramics and ceramic materials, applied in the field of electronic materials, can solve the problems of short circuit between silver migration layers, unable to meet environmental protection requirements, poor product reliability, etc., achieve good cooling effect, and avoid the risk of short circuit between layers , the effect of moistening powder particles
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Examples
Embodiment 1
[0032] 1) Synthesis of the main phase: according to the chemical formula Ca 0.98 SiO 3 Weighing raw material CaCO 3 and quartz, using deionized water as solvent, ball-milled for 24 hours, dried, passed through a 40-mesh sieve, pulverized evenly, put into an alumina crucible, and calcined at 1200 °C for 3 hours to synthesize the main phase ceramics.
[0033] 2) Synthesis of sintering aid: 3wt% Li 2 O+2wt% Bi 2 O 3 +3wt%B 2 O 3 The mass fraction ratio of the relative main phase ceramics of +3wt% ZnO, take Li by weighing 2 CO 3 , Bi 2 O 3 , H 3 BO 3 , ZnO and other raw materials, add ethanol according to the mass ratio of mixture and absolute ethanol 1:1, adopt wet mixing for 16 hours and then dry at 80 ℃, pass the dried mixture through a 40-mesh sieve, and put it into an alumina crucible , calcined at 600 ℃ for 3h, and used as a sintering aid after grinding.
[0034] 3) Ca in the main phase 0.98 SiO 3 The ceramics were mixed with fused silica and the sintering aid...
Embodiment 2
[0036] 1) Synthesis of the main phase: according to the chemical formula CaSiO 3 Weighing raw material CaCO 3 and quartz, using deionized water as solvent, ball milling and mixing for 24 hours, drying, passing through a 40-mesh sieve, pulverizing evenly, then loading into an alumina crucible and calcining at 1250 ℃ for 3 hours to synthesize the main phase ceramics.
[0037] 2) Synthesis of sintering aid: 1.5wt% Li 2 O+1wt%K 2 O+0.5wt% Bi 2 O 3 +2.5wt%B 2 O 3 +3wt%BaO+2wt%MnO 2 The mass fraction ratio of the relative main phase ceramics, weigh Li 2 CO 3 , K 2 CO 3 , Bi 2 O 3 , H 3 BO 3 , BaCO 3 , MnO 2 and other raw materials, add ethanol according to the mass ratio of mixture and absolute ethanol 1:1, adopt wet mixing for 16 hours and then dry at 80 °C, pass the dried mixture through a 40 mesh sieve, put it into an alumina crucible, and put it in an alumina crucible. It was calcined at 650 °C for 3 hours, and then used as a sintering aid after grinding.
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Embodiment 3
[0040] 1) Synthesis of the main phase: according to the chemical formula Ca 1.02 SiO 3 Weighing raw material CaCO 3 and quartz, using deionized water as solvent, ball-milled for 24 hours, dried, passed through a 40-mesh sieve, pulverized evenly, put into an alumina crucible, and calcined at 1300 °C for 3 hours to synthesize the main phase ceramics.
[0041] 2) Synthesis of sintering aid: 2.5wt% Li 2 O+1wt% Bi 2 O 3 +2.5wt%B 2 O 3 The mass fraction ratio of the relative main phase ceramics of +2wt% MgO, take Li by weighing 2 CO 3 , Bi 2 O 3 , H 3 BO 3 , MgO and other raw materials, add ethanol according to the mass ratio of mixture and absolute ethanol 1:1, adopt wet mixing for 16 hours and then dry at 80 ℃, pass the dried mixture through a 40 mesh sieve, and put it into an alumina crucible , calcined at 700 ℃ for 3h, and used as a sintering aid after grinding.
[0042] 3) Ca in the main phase 1.02 SiO 3 The ceramics were mixed with fused silica and the sintering...
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Abstract
Description
Claims
Application Information
- IPC
- C04B35/22; C04B35/622
- CPC
- C04B35/22; C04B35/622; C04B2235/3418; C04B2235/3201; C04B2235/3203; C04B2235/3206; C04B2235/3208; C04B2235/3298
- Inventors
- 李进; 余祖高