CN112010664B - High-thermal-conductivity transparent ceramic and preparation method thereof - Google Patents
High-thermal-conductivity transparent ceramic and preparation method thereof Download PDFInfo
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Abstract
The invention relates to the field of ceramic production, and provides a high-thermal-conductivity transparent ceramic and a preparation method thereof, which are used for solving the problem that a ceramic plate is weak in thermal conductivity. The invention provides a high heat conduction transparent ceramic, which comprises: s10, taking 7-10 parts by mass of sodium sand, 5-8 parts by mass of potassium feldspar, 40-60 parts by mass of alumina powder, 1-3 parts by mass of high-potassium sand, 1-3 parts by mass of potassium-sodium feldspar, 0.5-2 parts by mass of barium carbonate, 10-12 parts by mass of cordierite and 1-3 parts by mass of calcium phosphate; s20, mixing soda sand, potassium feldspar, alumina powder, high-potassium sand, potassium-sodium feldspar, barium carbonate, calcium phosphate and cordierite, preparing slurry by adopting wet ball milling, drying and crushing to obtain a base material; mixing the alumina microspheres and the potassium titanate whiskers with a base material, and uniformly stirring to obtain precursor powder; s30, stamping the precursor powder to form a plate blank; s40, drying the plate blank until the water content is lower than 1%, and then sintering the plate blank in a kiln at 1600-1700 ℃ to obtain the high-thermal-conductivity transparent ceramic. The light transmittance of the ceramic is improved, and the thickness and the heat conductivity of the ceramic are improved.
Description
Technical Field
The invention relates to the field of ceramic production, in particular to high-thermal-conductivity transparent ceramic and a preparation method thereof.
Background
According to the definition in the national standard GB/T23266-2009 ceramic plate, the ceramic thin plate mentioned in the invention is made of clay and other inorganic non-metallic materials through the production processes of forming, high-temperature sintering and the like, and has the thickness of not more than 6mm and the area of not less than 1.62m2The plate-like ceramic article of (1). The ceramic thin plate needs to have higher heat conductivity in some use scenes, while the semi-permeable ceramic thin plate has certain disadvantage on the index, and has more damages and high construction and later maintenance costs in application.
The prior transparent ceramics often need higher roasting temperature to improve the light transmittance of the ceramics.
Disclosure of Invention
The invention solves the technical problem of poor heat-conducting property of the ceramic plate and provides the high-heat-conducting transparent ceramic.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the preparation method of the high-thermal-conductivity transparent ceramic comprises the following steps:
s10, taking 7-10 parts by mass of sodium sand, 5-8 parts by mass of potassium feldspar, 40-60 parts by mass of alumina powder, 1-3 parts by mass of high-potassium sand, 1-3 parts by mass of potassium-sodium feldspar, 0.5-2 parts by mass of barium carbonate, 3-5 parts by mass of alumina microspheres, 1-3 parts by mass of potassium titanate whiskers, 10-12 parts by mass of cordierite, 1-3 parts by mass of calcium phosphate, 0.05-0.1 part by mass of yttrium oxide, 0.01-0.05 part by mass of lanthanum oxide and 0.1-0.5 part by mass of magnesium oxide;
s20, mixing soda sand, potassium feldspar, alumina powder, high-potassium sand, potassium-sodium feldspar, barium carbonate, calcium phosphate and cordierite, preparing slurry by adopting wet ball milling, drying and crushing to obtain a base material; mixing alumina microspheres, potassium titanate whiskers, yttrium oxide, lanthanum oxide and magnesium oxide with a base material, and uniformly stirring to obtain precursor powder;
s30, stamping the precursor powder to form a plate blank;
and S40, drying the plate blank until the water content is lower than 1%, and then sintering the plate blank in a kiln at 1600-1700 ℃ to obtain the high-thermal-conductivity transparent ceramic.
The aluminum oxide powder is used as a main raw material, the existing formula is changed, the sintering temperature is improved, and a sintering aid is introduced: alumina microspheres, potassium titanate whiskers, yttrium oxide, lanthanum oxide and magnesium oxide, so that the light transmittance of the plate is improved as much as possible; the whisker and the alumina microsphere are matched to improve the heat-conducting property of the plate as much as possible.
The heat conductivity of the plate is improved, and meanwhile, the light transmittance of the plate is improved.
Preferably, in step S10, 8 to 10 parts by mass of sodium sand, 6 to 8 parts by mass of potassium feldspar, 50 to 60 parts by mass of alumina powder, 2 to 3 parts by mass of high-potassium sand, 2 to 3 parts by mass of potassium-sodium feldspar, 1 to 2 parts by mass of barium carbonate, 4 to 5 parts by mass of alumina microspheres, 2 to 3 parts by mass of potassium titanate whiskers, 11 to 12 parts by mass of cordierite, 2 to 3 parts by mass of calcium phosphate, 0.07 to 0.1 part by mass of yttrium oxide, 0.03 to 0.05 part by mass of lanthanum oxide, and 0.2 to 0.5 part by mass of magnesium oxide.
Preferably, in step S10, 8 parts by mass of sodium sand, 6 parts by mass of potassium feldspar, 50 parts by mass of alumina powder, 2 parts by mass of high-potassium sand, 2 parts by mass of potassium-sodium feldspar, 1 part by mass of barium carbonate, 4 parts by mass of alumina microspheres, 2 parts by mass of potassium titanate whiskers, 11 parts by mass of cordierite, 2 parts by mass of calcium phosphate, 0.07 part by mass of yttrium oxide, 0.03 part by mass of lanthanum oxide, and 0.2 part by mass of magnesium oxide.
Preferably, the particle size of the alumina powder is 10 to 30 nm. The particle size of the alumina powder is optimized to improve the light transmittance of the ceramic.
Preferably, the sintering time is 4-6 h.
Preferably, the preparation method of the alumina microspheres comprises the following steps:
taking 4-5.6 parts by mass of aluminum sulfate, 4.5-6.3 parts by mass of urea and 0.28-78 parts by mass of P1230.2;
mixing aluminum sulfate and urea, adding 25-35 parts by mass of water, stirring until the aluminum sulfate and the urea are completely dissolved, adding an ethanol solution of P123, and continuously stirring for 1 hour to obtain a mixed solution;
and reacting the mixed solution at 150-200 ℃ for 12h, cooling, filtering, washing, drying, and roasting at 500-600 ℃ for 4 h.
Preferably, 4 parts by mass of aluminum sulfate, 4.5 parts by mass of urea and 4.78 parts by mass of P1230.2 are taken.
Preferably, the preparation method of the potassium titanate whisker comprises the following steps:
taking 30-40 parts by mass of stearic acid, 5-12 parts by mass of ethyl titanate and 10-15 parts by mass of a 20% potassium nitrate aqueous solution;
dropwise adding 20% potassium nitrate aqueous solution into molten stearic acid, adding ethyl titanate after dropwise adding is finished, stirring for 1-2 h, standing and cooling, roasting for 2h at 550 ℃, and cooling;
ball-milling the cooled product for 30min, calcining at 900 ℃ for 2h, and cooling to obtain the potassium titanate whisker. Can obtain layered potassium tetratitanate crystal whisker, which is combined with cordierite and alumina microsphere and can obviously improve the strength of transparent ceramic after high-temperature firing.
Preferably, 35 parts by mass of stearic acid, 10 parts by mass of ethyl titanate, and 11 parts by mass of a 20% potassium nitrate aqueous solution are taken.
The high-thermal-conductivity transparent ceramic is prepared by the preparation method of the high-thermal-conductivity transparent ceramic.
The inventor finds that inorganic whiskers can improve the mechanical property of the ceramic in the research and development process of transparent ceramics for many years, but the light transmittance or the heat conductivity of the transparent ceramic is difficult to change, and common zinc oxide whiskers, magnesium oxide whiskers, aluminum borate whiskers, silicon carbide whiskers and the like are difficult to improve the light transmittance of the ceramic.
The inventor makes a great deal of attempts to improve the heat-conducting property and the light transmittance of the transparent ceramic, and finds that the combination of the alumina with a certain structure and the potassium titanate whisker has an obvious effect on improving the light transmittance of the ceramic material, can improve the heat-conducting property of the ceramic material at the same time and greatly improves the property of the transparent ceramic. Further, the inventors have found that the light transmittance of the ceramic can be further improved by using layered potassium titanate whiskers in combination with alumina microspheres.
Compared with the prior art, the invention has the beneficial effects that: the light transmittance of the ceramic is improved, and the thickness and the heat conductivity of the ceramic are improved.
Detailed Description
The following examples are further illustrative of the present invention and are not intended to be limiting thereof.
Example 1
A highly thermally conductive transparent ceramic comprising:
s10, taking 80g of sodium sand, 60g of potassium feldspar, 500g of alumina powder, 20g of high-potassium sand, 20g of potassium-sodium feldspar, 10g of barium carbonate, 40g of alumina microspheres, 20g of potassium titanate whiskers, 110g of cordierite, 20g of calcium phosphate, 0.70g of yttrium oxide, 0.30g of lanthanum oxide and 2g of magnesium oxide;
s20, mixing soda sand, potassium feldspar, alumina powder, high-potassium sand, potassium-sodium feldspar, barium carbonate, calcium phosphate and cordierite, preparing slurry by adopting wet ball milling, drying and crushing to obtain a base material; mixing alumina microspheres, potassium titanate whiskers, yttrium oxide, lanthanum oxide and magnesium oxide with a base material, and uniformly stirring to obtain precursor powder;
s30, stamping the precursor powder to form a plate blank;
and S40, drying the plate blank until the water content is lower than 1%, and then sintering the plate blank in a kiln at 1600-1700 ℃ to obtain the high-thermal-conductivity transparent ceramic. The particle size of the alumina powder is 10-30 nm. The sintering time is 5 h. The preparation method of the alumina microspheres comprises the following steps:
taking 40g of aluminum sulfate, 45g of urea and P1232 g;
mixing aluminum sulfate and urea, adding 250mL of water, stirring until the aluminum sulfate and the urea are completely dissolved, adding 15mL of P123 ethanol solution, and continuously stirring for 1 hour to obtain a mixed solution;
and reacting the mixed solution at 150-200 ℃ for 12h, cooling, filtering, washing, drying, and roasting at 500-600 ℃ for 4 h.
The preparation method of the potassium titanate whisker comprises the following steps:
taking 35g of stearic acid, 10g of ethyl titanate and 11g of a 20% potassium nitrate aqueous solution;
dropwise adding 20% potassium nitrate aqueous solution into molten stearic acid at a speed of 40 drops/min, adding ethyl titanate after dropwise adding, stirring for 1-2 h, standing, cooling, roasting at 550 ℃ for 2h, and cooling;
ball-milling the cooled product for 30min, calcining at 900 ℃ for 2h, and cooling to obtain the potassium titanate whisker.
The aluminum oxide powder is used as a main raw material, the existing formula is changed, the sintering temperature is increased, and a sintering aid is introduced, so that the light transmittance of the plate is improved as much as possible; the whisker and the alumina microsphere are matched to improve the heat-conducting property of the plate as much as possible. The heat conductivity of the plate is improved, and meanwhile, the light transmittance of the plate is improved. The particle size of the alumina powder is optimized to improve the light transmittance of the ceramic. The layered potassium tetratitanate crystal whisker, combined with cordierite and alumina microsphere, can raise the strength of transparent ceramic obviously after high temperature sintering.
Example 2
A highly thermally conductive transparent ceramic comprising:
s10, taking 80g of sodium sand, 60g of potassium feldspar, 500g of alumina powder, 20g of high-potassium sand, 20g of potassium-sodium feldspar, 10g of barium carbonate, 40g of alumina microspheres, 20g of potassium titanate whiskers, 110g of cordierite, 20g of calcium phosphate, 0.70g of yttrium oxide, 0.30g of lanthanum oxide and 2g of magnesium oxide;
s20, mixing soda sand, potassium feldspar, alumina powder, high-potassium sand, potassium-sodium feldspar, barium carbonate, calcium phosphate and cordierite, preparing slurry by adopting wet ball milling, drying and crushing to obtain a base material; mixing alumina microspheres, potassium titanate whiskers, yttrium oxide, lanthanum oxide and magnesium oxide with a base material, and uniformly stirring to obtain precursor powder;
s30, stamping the precursor powder to form a plate blank;
and S40, drying the plate blank until the water content is lower than 1%, and then sintering the plate blank in a kiln at 1600-1700 ℃ to obtain the high-thermal-conductivity transparent ceramic. The particle size of the alumina powder is 10-30 nm. The sintering time is 5 h. The preparation method of the alumina microspheres comprises the following steps:
taking 40g of aluminum sulfate, 45g of urea and P1232 g;
mixing aluminum sulfate and urea, adding 250mL of water, stirring until the aluminum sulfate and the urea are completely dissolved, adding 15mL of P123 ethanol solution, and continuously stirring for 1 hour to obtain a mixed solution;
and reacting the mixed solution at 150-200 ℃ for 12h, cooling, filtering, washing, drying, and roasting at 500-600 ℃ for 4 h.
The potassium titanate is potassium hexatitanate.
Example 3
A highly thermally conductive transparent ceramic comprising:
step S10, taking 100g of sodium sand, 80g of potassium feldspar, 600g of alumina powder, 30g of high-potassium sand, 30g of potassium-sodium feldspar, 20g of barium carbonate, 50g of alumina microspheres, 30g of potassium titanate whiskers, 120g of cordierite, 30g of calcium phosphate, 1g of yttrium oxide, 0.5g of lanthanum oxide and 5g of magnesium oxide;
s20, mixing soda sand, potassium feldspar, alumina powder, high-potassium sand, potassium-sodium feldspar, barium carbonate, calcium phosphate and cordierite, preparing slurry by adopting wet ball milling, drying and crushing to obtain a base material; mixing alumina microspheres, potassium titanate whiskers, yttrium oxide, lanthanum oxide and magnesium oxide with a base material, and uniformly stirring to obtain precursor powder;
s30, stamping the precursor powder to form a plate blank;
and S40, drying the plate blank until the water content is lower than 1%, and then sintering the plate blank in a kiln at 1600-1700 ℃ to obtain the high-thermal-conductivity transparent ceramic. The particle size of the alumina powder is 10-30 nm. The sintering time is 5 h. The preparation method of the alumina microspheres comprises the following steps:
taking 56g of aluminum sulfate, 63g of urea and P1232.8g;
mixing aluminum sulfate and urea, adding 350mL of water, stirring until the aluminum sulfate and the urea are completely dissolved, adding 21mL of P123 ethanol solution, and continuously stirring for 1h to obtain a mixed solution;
and reacting the mixed solution at 150-200 ℃ for 12h, cooling, filtering, washing, drying, and roasting at 500-600 ℃ for 4 h.
The preparation method of the potassium titanate whisker comprises the following steps:
taking 35g of stearic acid, 10g of ethyl titanate and 11g of a 20% potassium nitrate aqueous solution;
dropwise adding 20% potassium nitrate aqueous solution into molten stearic acid at a speed of 40 drops/min, adding ethyl titanate after dropwise adding, stirring for 1-2 h, standing, cooling, roasting at 550 ℃ for 2h, and cooling;
ball-milling the cooled product for 30min, calcining at 900 ℃ for 2h, and cooling to obtain the potassium titanate whisker.
Comparative example 1
A highly thermally conductive transparent ceramic comprising:
s10, taking 80g of sodium sand, 60g of potassium feldspar, 500g of alumina powder, 20g of high-potassium sand, 20g of potassium-sodium feldspar, 10g of barium carbonate, 60g of alumina microspheres, 110g of cordierite, 20g of calcium phosphate, 0.70g of yttrium oxide, 0.30g of lanthanum oxide and 2g of magnesium oxide;
s20, mixing soda sand, potassium feldspar, alumina powder, high-potassium sand, potassium-sodium feldspar, barium carbonate, calcium phosphate and cordierite, preparing slurry by adopting wet ball milling, drying and crushing to obtain a base material; mixing the alumina microspheres, yttrium oxide, lanthanum oxide and magnesium oxide with a base material, and uniformly stirring to obtain precursor powder;
s30, stamping the precursor powder to form a plate blank;
and S40, drying the plate blank until the water content is lower than 1%, and then sintering the plate blank in a kiln at 1600-1700 ℃ to obtain the high-thermal-conductivity transparent ceramic. The particle size of the alumina powder is 10-30 nm. The sintering time is 5 h. The preparation method of the alumina microspheres comprises the following steps:
taking 40g of aluminum sulfate, 45g of urea and P1232 g;
mixing aluminum sulfate and urea, adding 250mL of water, stirring until the aluminum sulfate and the urea are completely dissolved, adding 15mL of P123 ethanol solution, and continuously stirring for 1 hour to obtain a mixed solution;
and reacting the mixed solution at 150-200 ℃ for 12h, cooling, filtering, washing, drying, and roasting at 500-600 ℃ for 4 h.
Comparative example 2
A highly thermally conductive transparent ceramic comprising:
s10, taking 80g of sodium sand, 60g of potassium feldspar, 500g of alumina powder, 20g of high-potassium sand, 20g of potassium-sodium feldspar, 10g of barium carbonate, 60g of potassium titanate whisker, 110g of cordierite, 20g of calcium phosphate, 0.70g of yttrium oxide, 0.30g of lanthanum oxide and 2g of magnesium oxide;
s20, mixing soda sand, potassium feldspar, alumina powder, high-potassium sand, potassium-sodium feldspar, barium carbonate, calcium phosphate and cordierite, preparing slurry by adopting wet ball milling, drying and crushing to obtain a base material; mixing potassium titanate whisker, yttrium oxide, lanthanum oxide and magnesium oxide with a base material, and uniformly stirring to obtain precursor powder;
s30, stamping the precursor powder to form a plate blank;
and S40, drying the plate blank until the water content is lower than 1%, and then sintering the plate blank in a kiln at 1600-1700 ℃ to obtain the high-thermal-conductivity transparent ceramic. The particle size of the alumina powder is 10-30 nm. The sintering time is 5 h.
The preparation method of the potassium titanate whisker comprises the following steps:
taking 35g of stearic acid, 10g of ethyl titanate and 11g of a 20% potassium nitrate aqueous solution;
dropwise adding 20% potassium nitrate aqueous solution into molten stearic acid at a speed of 40 drops/min, adding ethyl titanate after dropwise adding, stirring for 1-2 h, standing, cooling, roasting at 550 ℃ for 2h, and cooling;
ball-milling the cooled product for 30min, calcining at 900 ℃ for 2h, and cooling to obtain the potassium titanate whisker.
Comparative example 3
A highly thermally conductive transparent ceramic comprising:
s10, taking 80g of soda sand, 60g of potassium feldspar, 500g of alumina powder, 20g of high-potassium sand, 20g of potassium-sodium feldspar, 10g of barium carbonate, 40g of flaky alumina, 20g of potassium titanate whisker, 110g of cordierite, 20g of calcium phosphate, 0.70g of yttrium oxide, 0.30g of lanthanum oxide and 2g of magnesium oxide;
s20, mixing soda sand, potassium feldspar, alumina powder, high-potassium sand, potassium-sodium feldspar, barium carbonate, calcium phosphate and cordierite, preparing slurry by adopting wet ball milling, drying and crushing to obtain a base material; mixing flaky alumina, potassium titanate whiskers, yttrium oxide, lanthanum oxide and magnesium oxide with a base material, and uniformly stirring to obtain precursor powder;
s30, stamping the precursor powder to form a plate blank;
and S40, drying the plate blank until the water content is lower than 1%, and then sintering the plate blank in a kiln at 1600-1700 ℃ to obtain the high-thermal-conductivity transparent ceramic. The particle size of the alumina powder is 10-30 nm. The sintering time is 5 h.
The preparation method of the potassium titanate whisker comprises the following steps:
taking 35g of stearic acid, 10g of ethyl titanate and 11g of a 20% potassium nitrate aqueous solution;
dropwise adding 20% potassium nitrate aqueous solution into molten stearic acid at a speed of 40 drops/min, adding ethyl titanate after dropwise adding, stirring for 1-2 h, standing, cooling, roasting at 550 ℃ for 2h, and cooling;
ball-milling the cooled product for 30min, calcining at 900 ℃ for 2h, and cooling to obtain the potassium titanate whisker.
The plate width of the sheet-shaped alumina particles is 0.5 to 5 μm, and the ratio of the plate width to the plate thickness of the sheet-shaped alumina particles is 5 to 8.
Examples of the experiments
The prepared product was subjected to a heat conductivity test using a heat conductivity tester, and the transmittance of the sample at a wavelength of 700nm (sample thickness polished to 5mm) was measured using an ultraviolet-visible spectrophotometer (model UV-2550, Shimadzu corporation).
TABLE 1 Properties of transparent ceramics according to respective embodiments
The sample used for the test of each example or comparative example had a thickness of 5mm, which was large. However, example 1 also achieves 40% transmittance at a thickness of 5mm, providing the possibility of further increasing the thickness of the transparent ceramic.
The light transmittance of examples 1 and 3 is high, depending on the content of sintering aid and alumina, which in combination with the sintering aid increases the light transmittance to around 40% for the bulk ceramic plate. The transmittance of examples 1 and 3 was significantly improved compared to the comparative examples, because the whiskers of the comparative examples had a certain antagonistic effect with other components of the existing formulation, and a balance between the thermal conductivity and the transmittance could not be established. The whisker structure of the ceramic brick in the embodiment 2 is different from that of the ceramic brick in the embodiment 1, only the alumina microspheres are adopted in the comparative example 1, and the alumina structures in the comparative examples 2 and 3 are different from that of the ceramic brick in the embodiment 1, so that the thermal conductivity of the ceramic brick can be improved only by the alumina with a certain structure and the whiskers with a certain structure, and meanwhile, the light transmittance of the ceramic brick is improved.
The above detailed description is specific to possible embodiments of the present invention, and the above embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention should be included in the present claims.
Claims (8)
1. The preparation method of the high-thermal-conductivity transparent ceramic is characterized by comprising the following steps:
s10, taking 7-10 parts by mass of sodium sand, 5-8 parts by mass of potassium feldspar, 40-60 parts by mass of alumina powder, 1-3 parts by mass of high-potassium sand, 1-3 parts by mass of potassium-sodium feldspar, 0.5-2 parts by mass of barium carbonate, 3-5 parts by mass of alumina microspheres, 1-3 parts by mass of potassium titanate whiskers, 10-12 parts by mass of cordierite, 1-3 parts by mass of calcium phosphate, 0.05-0.1 part by mass of yttrium oxide, 0.01-0.05 part by mass of lanthanum oxide and 0.1-0.5 part by mass of magnesium oxide;
s20, mixing soda sand, potassium feldspar, alumina powder, high-potassium sand, potassium-sodium feldspar, barium carbonate, calcium phosphate and cordierite, preparing slurry by adopting wet ball milling, drying and crushing to obtain a base material; mixing alumina microspheres, potassium titanate whiskers, yttrium oxide, lanthanum oxide and magnesium oxide with a base material, and uniformly stirring to obtain precursor powder;
s30, stamping the precursor powder to form a plate blank;
s40, drying the plate blank until the water content is lower than 1%, and then sintering the plate blank in a kiln at 1600-1700 ℃ to obtain high-thermal-conductivity transparent ceramic;
the preparation method of the alumina microspheres comprises the following steps:
taking 4-5.6 parts by mass of aluminum sulfate, 4.5-6.3 parts by mass of urea and 0.28-78 parts by mass of P1230.2;
mixing aluminum sulfate and urea, adding 25-35 parts by mass of water, stirring until the aluminum sulfate and the urea are completely dissolved, adding an ethanol solution of P123, and continuously stirring for 1 hour to obtain a mixed solution;
reacting the mixed solution at 150-200 ℃ for 12h, cooling, filtering, washing, drying, and roasting at 500-600 ℃ for 4 h;
the preparation method of the potassium titanate whisker comprises the following steps:
taking 30-40 parts by mass of stearic acid, 5-12 parts by mass of ethyl titanate and 10-15 parts by mass of a 20% potassium nitrate aqueous solution;
dropwise adding 20% potassium nitrate aqueous solution into molten stearic acid, adding ethyl titanate after dropwise adding is finished, stirring for 1-2 h, standing and cooling, roasting for 2h at 550 ℃, and cooling;
ball-milling the cooled product for 30min, calcining at 900 ℃ for 2h, and cooling to obtain the potassium titanate whisker.
2. The method for preparing a transparent ceramic with high thermal conductivity according to claim 1, wherein in step S10, 8 to 10 parts by mass of sodium sand, 6 to 8 parts by mass of potassium feldspar, 50 to 60 parts by mass of alumina powder, 2 to 3 parts by mass of high potassium sand, 2 to 3 parts by mass of potassium-sodium feldspar, 1 to 2 parts by mass of barium carbonate, 4 to 5 parts by mass of alumina microspheres, 2 to 3 parts by mass of potassium titanate whiskers, 11 to 12 parts by mass of cordierite, 2 to 3 parts by mass of calcium phosphate, 0.07 to 0.1 part by mass of yttrium oxide, 0.03 to 0.05 part by mass of lanthanum oxide, and 0.2 to 0.5 part by mass of magnesium oxide.
3. The method for preparing a transparent ceramic with high thermal conductivity according to claim 2, wherein in step S10, 8 parts by mass of soda sand, 6 parts by mass of potassium feldspar, 50 parts by mass of alumina powder, 2 parts by mass of high-potassium sand, 2 parts by mass of potassium-sodium feldspar, 1 part by mass of barium carbonate, 4 parts by mass of alumina microspheres, 2 parts by mass of potassium titanate whiskers, 11 parts by mass of cordierite, 2 parts by mass of calcium phosphate, 0.07 part by mass of yttrium oxide, 0.03 part by mass of lanthanum oxide, and 0.2 part by mass of magnesium oxide.
4. The method for preparing a transparent ceramic with high thermal conductivity according to claim 1, wherein the alumina powder has a particle size of 10 to 30 nm.
5. The method for preparing the transparent ceramic with high thermal conductivity according to claim 1, wherein the firing time is 4-6 hours.
6. The method for preparing transparent ceramic with high thermal conductivity according to claim 1, wherein the aluminum sulfate is taken in an amount of 4 parts by mass, the urea is taken in an amount of 4.5 parts by mass, and the P1230.2 parts by mass.
7. The method for producing a transparent ceramic having high thermal conductivity according to claim 1, wherein 35 parts by mass of stearic acid, 10 parts by mass of ethyl titanate, and 11 parts by mass of a 20% potassium nitrate aqueous solution are taken.
8. The high thermal conductivity transparent ceramic is characterized by being prepared by the preparation method of the high thermal conductivity transparent ceramic according to any one of claims 1 to 7.
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