Tungsten Crucible in Ceramic Sintering
Tungsten crucible in ceramic sintering refers to a high-temperature container used for sintering structural, functional, and advanced technical ceramics, providing a stable thermal field under vacuum or inert atmosphere. The tungsten crucible is manufactured from high-purity tungsten (W ≥ 99.95%), offering a high melting point, low vapor pressure, and excellent structural stability at elevated temperatures.
Why use tungsten crucible for ceramic sintering? Ceramic sintering processes typically occur at high temperatures ranging from 1200°C to 2200°C, while some advanced ceramics require even higher processing temperatures. Strict requirements are also placed on atmosphere stability and material purity. Therefore, crucible materials must not only withstand extreme temperatures but also maintain structural stability and minimize contamination under long-term heating conditions.
CTIA’s tungsten crucible offers the following characteristics to meet the requirements of ceramic sintering applications:
（1）Maintain structural stability during high-temperature sintering without significant deformation under prolonged heating conditions.
（2）High-purity tungsten material effectively reduces impurity migration, helping maintain ceramic system purity.
（3）Minimal dimensional change at high temperatures supports shape control and densification stability during sintering.
（4）Uniform thermal conductivity promotes stable temperature distribution and improves process consistency.
（5）Excellent thermal shock resistance allows adaptation to repeated heating and cooling cycles.
（6）Stable structural performance under vacuum and inert atmosphere.
Specifications of CTIA’s Tungsten Crucible
（1）Purity: W ≥ 99.95%
（2）Density: 17.8–18.5 g/cm³
（3）Outer Diameter: 20–450 mm, customizable
（4）Height: 30–500 mm, customizable
（5）Wall Thickness: 2–25 mm, customizable
What ceramic sintering processes use tungsten crucible? Tungsten crucible is widely used in the high-temperature sintering of alumina ceramics (Al₂O₃), silicon nitride ceramics (Si₃N₄), silicon carbide ceramics (SiC), as well as other structural and functional ceramics. It is also suitable for experimental and production processes of electronic ceramics, advanced ceramics, and high-purity ceramic materials.
CTIA GROUP has specialized in tungsten crucible manufacturing for over 30 years. Based on ceramic sintering furnace thermal field structures and process requirements, CTIA provides optimized designs for wall thickness distribution, thermal uniformity, and high-temperature stability, delivering customized high-purity tungsten crucible solutions.
For any inquiry, please contact tungsten crucible manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: www.tungsten.com.cn
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