These properties enable boron nitride structures to maintain high stability at high temperatures, in high vacuum and in corrosive atmospheres, and are particularly suitable for applications where the purity of the material is critical, such as semiconductor crystal growth and metallization evaporation.

Great Ceramic selects high purity boron nitride powder (purity ≥99.9%) and adds a small amount of binder phase (such as alumina or silicon nitride) according to the different application requirements, in order to enhance the sintering density and mechanical properties.

Cold Isostatic Pressing (CIP) or Hot Press Sintering (HP).

• CIP molding Suitable for large crucible sizes, guaranteeing dimensional accuracy and structural homogeneity;

• The hot press sintering process results in crucible structures with higher densities and better thermal conductivity.

Boron nitride ceramics are usually sintered at temperatures between 1800 and 2000°C. The sintering temperature of boron nitride ceramics is usually between 1800 and 2000°C.
Great Ceramic performs controlled sintering in a vacuum and inert gas environment to minimize oxidation and impurity introduction.
The final result is CNC precision machining to achieve high dimensional accuracy and smooth surfaces to meet customer requirements for sealing and assembly accuracy.

Boron nitride ceramic structural components are not only high-temperature containers, but also key functional components in high-end manufacturing systems. In the future, its technological development will show the following directions:

• Chemical vapor synthesis (CVD) with plasma spheronization was used to prepare ultrafine BN powders;

• The grain size is controlled at 0.5-1 μm to improve the crucible density and mechanical strength;

• Reduces the content of impurity ions (Na, Fe, Ca) to meet semiconductor-grade purity requirements.

• Introduction of 3D printing + Hot Isostatic Pressing (HIP) technology for one-piece molding of complex shaped crucibles;

• CNC precision machining + digital inspection ensures dimensional accuracy of ±0.02 mm;

• Apply AI to control the sintering curve and realize automatic optimization of process parameters.

• Development of renewable BN crucible re-sintering technology;

• Recycling of used crucible powder reduces manufacturing energy consumption and carbon emissions;

• Promote a green ceramic manufacturing system that is “pollution-free, high-purity and sustainable”.

• BN crucibles will become a standardized component in the epitaxial growth of compound semiconductors (SiC, GaN);

• BN-Si₃N₄ composite crucibles will be the core structural material in hydrogen and aerospace high-temperature reaction systems;

• In the future, BN crucibles are expected to be functionally integrated (thermal conductivity + insulation + shielding).

As a professional manufacturer of advanced ceramics in China, Shenzhen Zhihao Ceramics Co., Ltd. focuses on the research, development and customization of high-performance ceramic materials, with the whole process technology system from raw material preparation, mold forming, sintering to precision processing.

Our strengths include:

1. High purity raw material control: imported BN powder, purity ≥ 99.9%, impurity ion content is strictly controlled at ppm level.

2. Multi-process molding system: CIP, HP or HIP molding process can be provided according to customers' needs.

3. Precision machining capability: tolerance can be controlled at ±0.02mm, surface finish up to Ra0.2.

4. Customized design service: support the customization of crucibles of different sizes, structures and applications (round, square, conical, multi-chamber type, etc.).

5. Strict quality testing: Each batch of products is tested for density, thermal conductivity, microstructure and purity to ensure batch consistency.

To Good Ceramics' Boron Nitride Structures have been proven by customers in many industries:

• Semiconductor industry: cooperated with many crystal growth equipment factories to provide BN crucible components for GaN and SiC crystals;

• Optical coating industry: Used in evaporation source containers to stabilize the output of metal films;

• Scientific research institutions and universities: long-term supply to materials laboratories for high-temperature reaction and composite material preparation experiments.

Customer feedback indicates that BN crucibles are significantly better than traditional alumina products in terms of durability and purity, with service life extended by 30% to 50%.

Boron nitride ceramics is not only a high-temperature container, but also an important basic material to support high-end manufacturing system.
Its unique properties in high-temperature insulating, reaction-resistant, and high-purity environments make it an irreplaceable key component for high-tech manufacturing.

ZhiHao Ceramics is committed to providing reliable advanced ceramic solutions for customers around the world, from research and development to mass production, the whole process of “precision manufacturing, quality-oriented” as the core concept.
Choose boron nitride ceramic crucibles for a future of stability, high purity and technological leadership.