Explore our flagship precision ceramic components manufactured for semiconductor, vacuum technology, and high-power applications.
Advanced Silicon Nitride Engineering Ceramics for High-Temperature Vacuum Systems
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High-Toughness Yttria Stabilized Zirconia Powder for Advanced Technical Ceramics
View Product DetailsIntegrating raw powder synthesis, precision net-shape sintering, precision machining, and active metal metallization.
Founded in 2003, Yixing Qiangguang Ceramic Materials Co., Ltd. is a professional provider dedicated to the research and development (R&D), manufacturing, and application solutions of high-performance advanced ceramic materials. It is among the few enterprises in China that possess a complete industrial chain, covering key links from powder forming, sintering, and precision machining to the provision of integrated application solutions.
The company is also a rare domestic manufacturer engaged in the R&D, production, and supply of a comprehensive portfolio of ceramic materials. Its product range covers zirconia ($ZrO_2$), yttria ($Y_2O_3$), alumina ($Al_2O_3$), magnesia ($MgO$), aluminum nitride ($AlN$), boron nitride ($BN$), silicon nitride ($Si_3N_4$), silicon carbide ($SiC$), aluminum titanate ($Al_2TiO_5$), and other key structural and functional ceramic materials engineered specifically for severe industrial, high-voltage, and vacuum environments.
Benefiting from excellent product performance, zero-porosity surface morphology, ultra-low outgassing rates, and stable quality, our products are extensively utilized in various high-end fields, such as food and medical industries, new energy vehicles, laser semiconductors, petrochemical engineering, powder metallurgy, national defense and military, as well as aerospace vacuum sectors.
In modern industrial physics, ultra-high vacuum (UHV) systems demand components capable of sustaining mechanical stress, electrical isolation up to hundreds of kilovolts, and zero gas permeability under thermal cycling. As a specialized wholesale ceramic vacuum manufacturer & supplier, Yixing Qiangguang combines deep material science expertise with specialized vacuum-brazing techniques to fabricate hermetic ceramic-to-metal assemblies that redefine operational reliability in high-vacuum environments.
Engineering materials for vacuum integrity, outgassing mitigation, dielectrics, and thermal stress matching.
In UHV chambers below $10^{-8}$ Torr, trapped gases within porous ceramics desorb continuously, degrading chamber pressures. Our pressureless sintering and hot-isostatic pressing (HIP) processes yield ceramics exceeding 99.8% theoretical density, ensuring virtually non-existent virtual leaks and outgassing rates below $1 \times 10^{-12}\text{ mbar}\cdot\text{l}/(\text{s}\cdot\text{cm}^2)$.
Ceramic vacuum feedthroughs must withstand severe electrical potentials without electrical breakdown across vacuum gaps. High-purity Alumina ($Al_2O_3 > 99.5\%$) and Aluminum Nitride ($AlN$) manufactured in our facility deliver dielectric strength exceeding $18-25\text{ kV/mm}$, ensuring safety in high-voltage power couplings and electron beam emitters.
Connecting technical ceramics to metal flanges (Kovar, Stainless Steel, OFHC Copper) requires precisely matched Coefficients of Thermal Expansion (CTE). Our specialized Molybdenum-Manganese (Mo-Mn) metallization and Titanium-doped active brazing filler alloys guarantee vacuum-tight joints capable of enduring thermal shock up to $800^\circ\text{C}$.
Comparative physical, thermal, and electrical metrics across our proprietary material lines for optimized component selection.
| Material Type | Density (g/cm³) | Thermal Conductivity (W/m·K) | Dielectric Strength (kV/mm) | Flexural Strength (MPa) | Primary Vacuum Application |
|---|---|---|---|---|---|
| 99.5% High-Purity Alumina ($Al_2O_3$) | 3.92 | 30 | 20 | 380 | UHV Feedthroughs, Electrical Insulators |
| Aluminum Nitride ($AlN$) | 3.30 | 180 - 230 | 18 | 350 | Semiconductor Wafer Chucks, Heat Sinks |
| Yttria-Stabilized Zirconia ($YSZ$) | 6.05 | 2.5 | 12 | 1100 | High-Toughness Vacuum Valves & Rotors |
| Silicon Nitride ($Si_3N_4$) | 3.25 | 35 | 15 | 850 | Thermal Shock Vacuum Chamber Fixtures |
| Hot-Pressed Boron Nitride ($BN$) | 2.10 | 60 (parallel) | 35 | 75 | PVD Sputtering Insulators, Crucible Liners |
Tailored advanced ceramic vacuum components engineered for extreme environments across major high-tech hubs.
In sub-3nm semiconductor processing (PECVD, ALD, and EUV lithography systems), ceramic electrostatic chucks (ESC) and vacuum isolation rings require ultra-high dimensional stability, resistance to fluorine/chlorine plasma corrosion, and uniform thermal spreading. Our Aluminum Nitride and high-purity Alumina components deliver micro-inch surface flatness, mitigating particle contamination in cleanrooms.
Space simulation chambers mimic cryogenic and UHV conditions of outer space. Qiangguang's ceramic isolators, vacuum-sealed multi-pin connectors, and high-voltage bushings handle severe thermal swings (from $-196^\circ\text{C}$ liquid nitrogen cooling up to $+400^\circ\text{C}$ bakeout cycles) without micro-cracking or vacuum integrity loss.
National particle laboratories utilize vacuum ceramic beam tubes and RF windows made of low-loss dielectric technical ceramics. Our precise cold-isostatic pressing and micro-grinding ensure low dielectric loss tangent ($\tan\delta < 10^{-4}$), facilitating seamless microwave transmission while maintaining hermetic isolation in high-power RF cavities.
Commercial physical vapor deposition (PVD) optical coating chambers demand rugged ceramic target backing plates, electron gun insulators, and sputtering shields. Our Boron Nitride and Magnesium Oxide assemblies provide high resistance to electrical arc damage and exceptional thermal shock endurance.
Unlocking cost advantages, ultra-tight production schedules, and end-to-end quality assurance for global OEMs.
Unlike regional assemblers that outsource raw powder preparation or precision CNC machining, Yixing Qiangguang executes raw powder refining, spray drying, CIP moulding, high-temperature sintering ($1650^\circ\text{C}-1900^\circ\text{C}$), diamond grinding, and active brazing under one unified standard operating quality system.
Leveraging China's mature industrial ecosystem, localized rare-earth raw material reserves (Zirconium, Yttrium, Alumina), and optimized mass-production automation, we offer wholesale ceramic vacuum components at a 30% to 45% cost reduction relative to European or North American counterparts, while exceeding standard ISO specifications.
With multi-axis CNC laser machining, ultrasonic ceramic drilling, and 3D CMM inspection tools, our engineering team transitions customer CAD designs into fully tested, helium-leak-checked prototype vacuum ceramics within 14 to 21 business days.
Delivering high-value ceramic engineering solutions with dedicated after-sales support worldwide.
Adhering to the core principle of "creating value for customers", Qiangguang provides customized and cost-efficient advanced ceramic solutions tailored to the specific demands of different industrial customers. It is supported by high-quality after-sales services and a strict full-process tracking system, which effectively enhances cooperation efficiency and promotes continuous quality improvement.
At present, the company's products are sold well across China and exported directly to Italy, the United Kingdom, Australia, Japan, Malaysia, Thailand, Hungary, and other key manufacturing countries and regions across Europe, Asia-Pacific, and the Americas. Committed to delivering high-quality products at reasonable prices, Qiangguang looks forward to establishing long-term, stable cooperative relations with global partners.
Every ceramic batch undergoes rigorous microstructural analysis (SEM), surface roughness measurement ($Ra < 0.1\,\mu\text{m}$), 100% dye penetrant testing, thermal cycling validation, and mass spectrometer helium leak inspection ($< 10^{-10}\text{ Pa}\cdot\text{m}^3/\text{s}$), complying with ISO 9001:2015, RoHS, and REACH guidelines.
Pioneering advancements in additive manufacturing, ultra-high-temperature hermetic sealing, and quantum-grade ceramics.
Transitioning from traditional cold-pressing to stereolithography (SLA) ceramic 3D printing enables internal cooling channels, complex vacuum manifold routing, and lightweight lattice structures without sacrificing structural density or vacuum hermeticity.
Engineered sub-micron grain boundaries in Alumina and Yttria ceramics reduce dielectric loss tangent at high frequencies ($>100\text{ GHz}$), facilitating next-generation 6G RF vacuum tubes and advanced fusion reactor diagnostics.
Developing novel non-noble active metal braze alloys enables ceramic-to-metal joints to withstand continuous operating temperatures above $1000^\circ\text{C}$ in oxidizing or vacuum environments without seal degradation.
Technical answers regarding vacuum integrity, material selection, active metal brazing, and bulk supply capabilities.
Advanced ceramics such as 99.5% Alumina, Aluminum Nitride, and Zirconia offer superior dielectric strength, zero helium porosity, exceptional thermal stability ($>1000^\circ\text{C}$), and zero organic outgassing. Unlike polymer seals, technical ceramics do not degrade or decompose under high bakeout temperatures or harsh chemical plasma exposure.
We execute 100% helium leak detection using calibrated mass spectrometer leak detectors (MSLD) following ISO standards. Our standard pass criteria for ultra-high vacuum components requires a leak rate lower than $1 \times 10^{-10}\text{ Pa}\cdot\text{m}^3/\text{s}$ ($1 \times 10^{-9}\text{ atm}\cdot\text{cc}/\text{s}$).
Yes. As a direct manufacturer with a fully integrated precision machine shop, we accept standard CAD formats (STEP, IGES, DWG) and produce custom components with tight geometric tolerances up to $\pm 0.001\text{ mm}$ ($\pm 0.00004\text{ inches}$).
Standard prototype components ship within 2 to 3 weeks, while high-volume production runs typically ship within 4 to 6 weeks. We support global freight via air, ocean, and express couriers directly to international destinations including Italy, UK, Australia, Japan, Malaysia, Thailand, Hungary, and North America with full export documentation.
Complete product range including precision engineered ceramic spheres, powders, and customized technical components.
