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High Precision 99.7% Alumina Machined Technical Ceramics for Semiconductor1
Ceramic MaterialTechnical CeramicsMachined Ceramic
SHENZHEN JINGHUI INDUSTRY LIMITED
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Product Description High Precision 99.7% Alumina Machined Technical Ceramics for Semiconductor Product DescriptionThe alumina ceramics we supplied are made from high-purity alumina ceramic materials and formed by cold isostatic pressing, cured at high temperatures. Then we will do further machining process and make the tolerance of critical dimensions to +/- 0.001mm, the surface finish to Ra0.1 (Depending on customer needs).We offer a selection of purities ranging from 95% - 99.8% slumina. Our factory has access to many different types of shaping methods, including dry pressing, ISO pressing, ceramic injection molding, tape casting, hot pressing, and extrusion.Alumina ceramic is characterized by high hardness, wear resistance, low erosion levels, high-temperature resistance, corrosion resistance, and good chemical stability. Furthermore, it can be highly polished, making it a mirror surface to reduce friction at the working surface. So alumina ceramic plates are extensively used in medical, electronic, electrical, machinery, chemistry, new energy, military, aerospace, and so on. The Prime CharacteristicsThe main features of the 99.7% alumina ceramic plate1. High precision dimensions with tightening tolerance, it's easier to get a perfect fitting relationship2. High-temperature ability: withstand up to 1700°C in oxidizing and up to 2000°C in reducing atmospheres3. Wear & abrasion resistance: Alumina is an extremely hard technical ceramic with superb wear resistance4. Chemical inertness, resistant to most strong acids and alkalis, and does not rust forever 5. Electrical insulation: The insulation breakdown is up to 18 kV at least6. Great mechanical properties, hardness, compressive, and flexural strength are much higher than stainless steel7. Chemical corrosion resistance under high temperature, even if with strong acid or alkali8. Protective atmospheres or high vacuum at high temperatures to eliminate contamination or impurity.9. Low material cost in high-level applications than other technical ceramicsThe specification of a 99.7% alumina ceramic plateForming methodsISO pressed, Dry pressed, Ceramic injection molding, Hot pressed, Tape casting, etc.SpecificationOD: 1mm - 50mm; length: 10mm - 800mmPrecision processingCNC machining, Precision grinding, Polishing, Lapping, etc.ToleranceOD and ID: 0.001mm; length: 0.001mmKey parametersRoughness: 0.02mm; Flatness: 0.001mm; Parallelism: 0.001mmSurface qualityFree of cracks, foreign contamination, mirror surface better than Ra0.1The gallery of high-precision ceramic partsRemark:We have the capability to handle a variety of complicated geometries of high-precision ceramic parts via CNC machining, precision grinding, precision drilling, and so on. Datasheet of Technical ceramicsPropertyUnitsMaterial 99.5%alumina99%alumina95%aluminaZrO2(Y-TZP)ZrO2(TTZ)Densityg/cm3≥3.85≥3.80≥3.60≥5.95≥5.72Water absorption%00000HardnessHV1700170015001300900Flexural strengthMpa≥379≥338≥320≥1200≥1200Compressive strengthMpa≥2240≥2240≥2000≥19901750Fracture toughnessMpa m1/24-54-53-46.5-811Max. servicetemperatureoC1675160014501000 CTE1×10 -6 /oC6.5~8.06.2~8.05.0~8.08.0~9.510.2Thermal shockT(oC)≥250≥200≥220≥300350Thermal conductivity(25oC)W/m.k30292433Volume resistivityohm.cm 25oC>1 x 10 14>1 x 10 14>1 x 10 14>1 x 10 11>1 x 10 11300oC1 x 10 128 x 10 1110 12 -10 131 x 10 101 x 10 10500oC5 x 10 102 x 10 91 x 10 91 x 10 61 x 10 6Insulation strengthKV/mm1918181720Dielectric constant(1Mhz)(E)9.79.59.52928 Why choose us?Our capability and strengthWe have in-house comprehensive manufacturing types of equipment, including forming, sintering, CNC machining, precision grinding, laser cutting, and so on, which helps us to control the quality very well. Also, it greatly benefits in cost control.The state-of-the-art manufacturing equipmentRigorous Quality Control SystemRemark:We have the complete quality-control system per ISO9001, including IQC, IPQC, QA, and OQC processes. FAQFAQs (Frequently Asked Questions)Q1: Are you a factory or a trading company?A: We are a manufacturer with over 15 years of experience. You are welcome to visit our factory.Q2: Do you send a sample to check?A: Sure, the sample is free and freight collect.Q3: When will you ship it?A: If the products are in storage, we'll ship within 48 hoursQ4: When can I get the price?A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price.Please call us or tell us in your email so that we can proceed with your inquiry as a priority.Q5: Is it available to provide customized products?A: We always support custom-made demand as per different materials, dimensions, and designs.
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