Precision-engineered technical ceramics, high-purity oxide powders, and advanced grinding media
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 (ZrO2), yttria (Y2O3), alumina (Al2O3), magnesia (MgO), aluminum nitride (AlN), boron nitride (BN), silicon nitride (Si3N4), silicon carbide (SiC), aluminum titanate (Al2TiO5) and other key ceramic materials for demanding industrial applications.
Benefiting from excellent product performance and stable quality, our advanced ceramics 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 sectors.
Driven by strict material synthesis science and state-of-the-art cold isostatic pressing (CIP) and hot isostatic pressing (HIP), Qiangguang bridges the gap between raw powder chemistry and high-precision structural components capable of withstanding extreme mechanical stress, thermal shocks, and aggressive chemical environments.
An in-depth metallurgical analysis of oxide and non-oxide technical ceramics engineered in China
Pure zirconia undergoes structural phase transitions upon heating: monoclinic ($m$) to tetragonal ($t$) at 1170°C, and tetragonal to cubic ($c$) at 2370°C. The volume expansion (~3-5%) during the $t \rightarrow m$ cooling transition typically causes destructive fracturing in un-stabilized ceramics. As a premier China High Ceramic Manufacturer, Qiangguang integrates precise dopants such as Yttria ($Y_2O_3$), Magnesia ($MgO$), Ceria ($CeO_2$), and Calcia ($CaO$) to stabilize the high-temperature tetragonal or cubic phases down to ambient temperatures.
Yttria-Stabilized Tetragonal Zirconia Polycrystal (3Y-TZP): Incorporating ~3 mol% Y2O3 creates submicron tetragonal grains capable of stress-induced phase transformation. Under localized stress concentrations (e.g., crack initiation), the metastable tetragonal phase transforms into the monoclinic phase. The accompanying volume expansion exerts compressive stress on the crack tip, effectively arresting crack propagation—a phenomenon known as transformation toughening. This grants YSZ extraordinary fracture toughness ($K_{IC} > 7-10 \text{ MPa}\cdot\text{m}^{1/2}$) and flexural strength exceeding $1200 \text{ MPa}$.
Magnesia & Calcia Stabilized Zirconia (MSZ / CSZ): MgO and CaO stabilization produces partially stabilized zirconia (PSZ) containing fine tetragonal precipitates within a cubic matrix. MSZ demonstrates superior resistance to thermal shock and high-temperature steam degradation, making it indispensable for foundry metallurgy, refractory nozzles, and thermal barrier coatings.
Modern microelectronics and high-power laser systems demand ceramic substrates capable of dissipating high heat fluxes while maintaining pristine electrical insulation. Aluminum Nitride (AlN) serves as a supreme alternative to toxic Beryllium Oxide (BeO) and low-conductive Alumina ($Al_2O_3$).
Utilizing high-purity (99.5% to 99.99%) submicron alpha-alumina powders, Qiangguang engineers structural parts exhibiting extreme hardness (Vickers hardness $\sim 1500-1800 \text{ HV}$), exceptional dielectric breakdown strength ($>15 \text{ kV/mm}$), and immunity to chemical attack from concentration acids and alkalis at elevated temperatures.
Deploying tailored technical ceramics across demanding global engineering verticals
High-purity AlN and Alumina ceramic arm components, electrostatic chucks (ESC), vacuum end-effectors, and laser resonant cavity rings requiring high dielectric performance, plasma etching resistance, and thermal matching.
Biocompatible YSZ and Alumina-toughened Zirconia (ATZ) for orthopedic hip joint femoral heads, dental crowns, abutments, and surgical cutting blades featuring zero cytotoxicity, zero wear debris, and infinite fatigue life.
Direct Bonded Copper (DBC) and Active Metal Brazing (AMB) AlN/Si3N4 substrates utilized in Electric Vehicle inverter modules, power conversion units, and high-current LED arrays for continuous thermal dissipation.
Ultra-high temperature ceramics (UHTCs) such as SiC, Boron Nitride, and YSZ thermal barrier coatings engineered for jet engine turbine components, missile radomes, rocket nozzle throats, and heavy armor plating.
Ceria-stabilized and Yttria-stabilized Zirconia beads ($0.05\text{mm} - 5.0\text{mm}$) engineered for sub-micron wet grinding of lithium battery cathode/anode slurries, titanium dioxide pigments, pharmaceutical suspensions, and inks.
Leveraging vertical integration, regional raw material clusters, and advanced automation to deliver unmatched cost-performance advantages
Unlike conventional component fabricators reliant on third-party granulates, Qiangguang operates proprietary chemical precipitation, spray drying, and calcination lines. This ensures complete control over particle size distribution ($D_{50}$ down to $0.2\mu\text{m}$), purity levels, and trace element dopant uniformity from the ground up.
Situated in Yixing—China's recognized ceramic capital—our facility benefits from an ultra-dense industrial cluster. This localized network provides instant access to raw rare-earth minerals (Yttrium, Cerium), specialized graphite tooling, diamond machining tooling, and high-temperature gas-pressure sintering furnaces, ensuring rapid order turnarounds.
Post-sintering ceramic machining requires extreme precision due to the material's immense hardness. Our facility utilizes multi-axis CNC ultrasonic machining centers, internal/external cylindrical grinders, and surface lapping tools capable of achieving tight dimensional tolerances of $\pm 0.001\text{ mm}$ and surface roughness of $Ra < 0.01 \mu\text{m}$.
Next-generation ceramic innovations transforming global industrial frameworks
Pioneering Lithography-based Ceramic Manufacturing (LCM) and Digital Light Processing (DLP) to produce intricate internal cooling channels in turbine blades and custom patient-specific implants without expensive hard tooling.
Transitioning from micro-grain architectures to sub-50nm ceramic grain structures. Nano-structured YSZ and Si3N4 achieve superplastic deformation properties at lower temperatures and extreme shock resistance under cryogenic conditions.
Developing proton-conducting ceramic membranes and solid oxide electrolysis cell (SOEC) electrolyte plates to accelerate global green hydrogen generation and high-efficiency solid oxide fuel cells (SOFC).
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 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 the country and exported to Italy, the United Kingdom, Australia, Japan, Malaysia, Thailand, Hungary and other countries and regions. Committed to delivering high-quality products at reasonable prices, Qiangguang sincerely looks forward to establishing long-term and stable cooperative relations with global partners.
Complete direct-from-factory catalog for worldwide enterprise orders
Expert insights regarding material selection, customization tolerances, thermal properties, and international shipping protocols