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Most special-shaped ceramic products for the ceramic industry are custom-made. According to their service environment requirements, they can be classified into several categories, including high-temperature resistance, corrosion resistance, wear resistance, high-pressure resistance, and thermal shock resistance. The molds and dimensional accuracy are determined based on customer drawings, while the materials and manufacturing processes are selected according to the specific application fields.
These special-shaped products are mainly used as components and accessories for various instruments, equipment, and facilities. They are widely applied in industries such as metallurgy, machinery, chemical processing, textiles, military applications, and civilian products. The material selection of each product is determined according to the required performance characteristics and service conditions.
Material | special-shaped ceramic products | |||||
character | UNIT | A99 | A95 | ZrO2 | RSiC | NSiC |
content | % | 99.00 | 95 | 一 | 98.5 | SiN20-40%;SIC 60-80% |
color | 一 | white | white | Ivory white | black | gray |
Density | g/cm³ | 3.8 | 3.75 | 5.89 | 2.7 | 2.8 |
HRC | MH | 9 | 8.8 | 8.5 | 9.5 | 9 |
Flexural Strength (20℃) | Mpa | 340 | 304 | 1200 | 90-100 | 160-180 |
Compressive Strength (20℃) | Mpa | 2210 | 1910 | 5700 | ≥600 | 600-700 |
Thermal Expansion Coefficient (20℃ to 800℃) | 10⁶/℃ | 7.6 | 7.6 | 10 | 4.8 | 5.0 |
Dielectric Strength (5mm Thickness) | AC-kv/mm | 10 | 10 | 一 | 一 | 一 |
Dielectric Loss (25℃@1MHz) | 一 | 0.0006 | 0.0004 | 0.001 | 一 | 一 |
Dielectric Constant (25℃@1MHz) | — | 9.5 | 9.2 | 29 | — | — |
Volume Resistivity (20℃) （300℃） | Q ·cm³ | >10⁴ 4*10" | >10⁴ 2*10" | >10³ 5*10 | 一 | 一 |
Long-term Service Temperature | ℃ | 1600 | 1400 | 2200 | 1650 | 1450 |
Thermal Conductivity (25℃) | W/(m ·K) | 34 | 20 | 3 | 34 | 15 |
