Preparation method of high-thermal-conductivity ceramic material for LEDs
A technology of high thermal conductivity ceramics and preparation steps, which is applied in metal material coating technology, semiconductor devices, liquid chemical plating, etc., can solve the problem of low heat dissipation efficiency of LED ceramic substrates, achieve safe and reliable anti-electromagnetic shielding performance, and improve heat dissipation The effect of high stability and lattice oscillation harmony
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
example 1
[0036] In parts by weight, weigh 20 parts of aluminum nitrate, 2 parts of calcium nitrate, 2 parts of yttrium nitrate, 10 parts of glucose, and 100 parts of deionized water, add aluminum nitrate, calcium nitrate, yttrium nitrate, and glucose into the deionized water, Stir at 200r / min at room temperature for 20min to obtain a mixed solution, heat the mixed solution in an oven at 120°C for 1h to obtain a foamy powder, place the foamy powder in a muffle furnace, and heat the mixed solution at 20°C / The temperature was raised to 1000 °C at a rate of 1 min, and the heat preservation and calcination was carried out for 40 min to obtain a mixed powder precursor. The mixed powder precursor was placed in a vacuum carbon tube sintering furnace, and nitrogen was introduced at a rate of 100 mL / min. Raise the temperature to 1300°C, hold for 2 hours for nitriding, then cool down to 600°C, hold for 30 minutes to remove carbon, and cool to room temperature with the furnace to obtain aluminum n...
example 2
[0040] In parts by weight, weigh 25 parts of aluminum nitrate, 2.5 parts of calcium nitrate, 2.5 parts of yttrium nitrate, 12.5 parts of glucose, and 125 parts of deionized water, add aluminum nitrate, calcium nitrate, yttrium nitrate, and glucose into deionized water, Stir at 250r / min at room temperature for 25min to obtain a mixed solution, heat the mixed solution in an oven at 130°C for 1.5h to obtain a foamy powder, place the foamy powder in a muffle furnace, Raise the temperature to 1100°C at a rate of 110mL / min, heat-preserve and calcine for 50min to obtain a mixed powder precursor, place the mixed powder precursor in a vacuum carbon tube sintering furnace, feed nitrogen gas at a rate of 110mL / min, and heat at room temperature at 50°C / min The temperature was raised to 1450°C at a certain rate, held for 3 hours for nitriding, then cooled to 700°C, held for 35 minutes to remove carbon, and cooled to room temperature with the furnace to obtain aluminum nitride powder with an...
example 3
[0044] In parts by weight, weigh 30 parts of aluminum nitrate, 3 parts of calcium nitrate, 3 parts of yttrium nitrate, 15 parts of glucose, and 150 parts of deionized water, add aluminum nitrate, calcium nitrate, yttrium nitrate, and glucose into deionized water, Stir at 300r / min at room temperature for 30min to obtain a mixed solution, heat the mixed solution in an oven at 140°C for 2h to obtain a foamy powder, place the foamy powder in a muffle furnace, and heat the mixed solution at 20°C / The temperature was raised to 1200°C at a rate of 1 min, and the heat preservation and calcination was carried out for 60 min to obtain a mixed powder precursor. The mixed powder precursor was placed in a vacuum carbon tube sintering furnace, and nitrogen gas was introduced at a rate of 120 mL / min. Raise the temperature to 1600°C, hold for 4 hours for nitriding, then cool down to 800°C, hold for 40 minutes to remove carbon, and cool to room temperature with the furnace to obtain aluminum ni...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| decomposition temperature | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More