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Chaozhou Dongyue Materials Technology Co., Ltd.: A Shining New Star in the Field of New Materials

In today’s rapidly advancing materials science and technology landscape, Chaozhou Dongyue Materials Technology Co., Ltd. has emerged as a shining new star, swiftly making its mark in the industry and establishing itself as a key driver of innovation and application in the field of new materials.

Based in Chaozhou, reaching out in all directions.
The company is located in Chao’an District, Chaozhou City, Guangdong Province, an area renowned for its superior geographic location, convenient transportation, and abundant industrial resources—conditions that provide an unparalleled foundation for the company’s growth. Leveraging Chaozhou’s vibrant business environment and robust industrial base, Dongyue Materials Technology has been able to swiftly tap into a wide array of advantageous resources, steadily expanding and strengthening its operations. As a result, the company’s influence is gradually extending beyond Chaozhou to encompass the entire nation and even the global market.

Strong capabilities forge the foundation of quality.
Dongyue Materials Technology has a registered capital of RMB 2 million, a substantial financial foundation that not only underscores the company’s strong growth potential from its inception but also provides robust financial support for subsequent activities such as R&D investment, equipment procurement, talent acquisition, and market expansion. The company primarily engages in scientific research and technical services, with a broad and in-depth scope of operations, dedicated to delivering cutting-edge, high-quality material solutions across various industries.

New materials
New materials

Material Properties Table for Pressureless Sintered Silicon Carbide Ceramics

Material Properties
Material Properties
Unit
Unit
CORESIC@SP CORESIC@SE
Silicon carbide content
Chemical Composition
(Wt)% ≥ 98.5 ≥ 98
Average grain size
Average Grain Size
micron 4-10 4-10
Density
Bulk Density
kg/dm³ 3.14 3.03
Apparent porosity
Apparent Porosity
Vol% 0.085 0.3
Vickers hardness HV 0.5
Vickers Hardness HV0.5
kg/mm² 2480 2200
Flexural strength * (three-point) at 20°C
Flexural Strength *(3 points) at 20 ℃
megapascal 380 400
Compressive strength at 20°C
Compressive Strength at 20 ℃
megapascal 3900 3900
Elastic modulus at 20°C
Modulus of Elasticity
GPa 420 420
Fracture toughness
Fracture Toughness
MPa/m 1/2 5.34 5.03
Thermal conductivity
Thermal Conductivity
W/(m·K) 160-180 140-160
Resistivity
Electrical Resistivity
Ohm.cm 106 -10 8 106 -10 8
Coefficient of thermal expansion
Coefficient of Thermal Expansion
K -1 *10 -6 4.5 4.4
Maximum operating temperature ***
Max. Working Temp.
degrees Celsius 1700 1700

 

* Test bar size: 3 x 4 x 40 mm, **Room Temperature, *** in an air atmosphere
Note: The above values are reference figures determined based on test specimens; actual performance characteristics may vary depending on the product’s shape and service conditions. The information, recommendations, and opinions provided in this document are intended solely for your consideration, inquiry, and verification and shall not, in whole or in part, be construed as constituting any warranty or representation that would give rise to our legal liability.

Comparison of the Physical Properties of Several Silicon Carbide Materials

Material Properties
Material Properties
Pressureless Sintered Silicon Carbide
SSiC
Reaction-Sintered Silicon Carbide
SiSiC
Recrystallized silicon carbide
R-SiC
 Carbide-bonded silicon carbide
N-SiC
Density (g/cm³) 3.05 3.02 2.7 2.75
Apparent porosity (%)
Apparent Porosity
<3 <0.1 <15 <11
Modulus of Elasticity (GPa)
20°C 350 330 240 250
1200℃ 300 300 190 200
Flexural Strength (MPa)
Room Temperature 320 250 90 160
1300℃ 330 260 100 180
1600℃ 350 - - -
Thermal conductivity (W/m·K)
Thermal Conductivity at 1250℃
42 40 35 18
Coefficient of thermal expansion α (RT...800℃)
Coefficient of Thermal Expansion
4.4×10 -6 /°C 4.5×10 -6 /°C 4.6×10 -6 /°C 4.7×10 -6 /°C
Maximum operating temperature *
Max. Working Temp. *
1700°C 1380°C 1600℃ 1450°C

 

Typical Advantages of the Daily-Use Porcelain Industry

• Significantly reduced weight, improved energy efficiency, and lower energy consumption (with an average energy-saving rate of over 20%);
• High thermal conductivity reduces sintering time while accelerating the removal of water and impurities from within the ceramic green body, thereby enhancing product quality.
• Reduced thickness maximizes the efficient use of the kiln’s limited space, thereby increasing the production capacity of each individual kiln (on average, a 17% increase in output);
• High-temperature strength ensures that the panel surface does not deform or warp, thereby improving the yield of ceramic products;
• High-purity materials with no other impurity volatilization, eliminating the need for alumina coating and thereby reducing defects such as spalling (resulting in an average yield improvement of 3%–5%);
• Exhibits strong antioxidant performance and can be used continuously at 1600°C in an air atmosphere, with a service life significantly longer than that of conventional refractory materials.

Comparison of firing boards made from different materials under the same operating conditions

Material
Material
Mullite board
Mullite Plate
Oxidation-bonded silicon carbide board
OSiC Plate
Reaction-Sintered Silicon Carbide Plate
SiSiC Plate
Pressureless Sintered Silicon Carbide Plate
SSiC Plate
Specifications
Size
370*550*13mm 370*550*11mm 370*550*5mm 370*550*3mm
Density
Density (g/cm³)
1.90 2.85 3.02 3.05
Weight
Weight (kg/pc)
5.03 6.38 3.07 1.86
Column height 50 mm (kg)
Pillar Height 50mm
0.5 per layer 0.5 per layer 0.5 per layer 0.5 per layer
Weight per layer of product
Product Weight Per Layer (kg)
2 2 2 2
Number of layers that can be loaded within 1 meter
Loading Layer per meter height
16 16 18 19
How much space is remaining in mm?
Left Space per layer (mm)
-8 24 10 -7
Product weight
Product Weight (kg)
32 32 36 38

 

1. Reduce the weight of the firing tray by approximately 30–70%, thereby decreasing energy consumption.
2. Increase capacity by 5%–20%, with improved space utilization.
3. Reduce slagging of alumina powder and lower the rework rate.
4. No impurity spattering; slagging caused by leaching from the support plate is reduced to below 1%.
5. No deformation—not just resistance to deformation—reducing the replacement rate.
6. Usage frequency increases by 3 to 5 times, significantly extending the replacement interval.
7. High thermal conductivity, resulting in shorter heating times.

 

Diverse business operations spanning a wide range of sectors

Maximize customer interests and pursue continuous improvement and innovation.

Promotion and R&D of New Materials Technologies

The company boasts an R&D team composed of seasoned materials experts and technical leaders who maintain a keen awareness of global trends in new materials technology. They continuously pursue innovation and are committed to developing next-generation materials that deliver high performance and high added value. At the same time, the company actively collaborates with research institutions and universities both domestically and internationally on industry–university–research partnerships, accelerating the commercialization of scientific and technological advances and ensuring that the latest research findings are promptly translated into practical applications, thereby supporting technological upgrades and product innovation across various industries.

Engineering Technical Services and Innovation

Dongyue Materials Technology is not limited to materials R&D and sales; it also offers comprehensive engineering and technical research, experimental development services, as well as one-stop solutions encompassing technical services, technology development, technical consulting, technology exchange, technology transfer, and technology promotion. From initial project planning and technical solution design through equipment installation and commissioning to ongoing technical support, the company leverages its expert team and extensive experience to deliver the highest-quality, most efficient services, helping clients overcome a wide range of technical challenges in their production processes and ensuring the smooth advancement and efficient operation of their projects.

Core Product — Outstanding Advantages of Pressureless Sintered Silicon Carbide

Among Dongyue Materials Technology’s extensive product portfolio, pressureless-sintered silicon carbide stands out as the company’s flagship product.

Advanced Processes Deliver Exceptional Quality

CORESIC, a new material from Sanze, employs pressureless sintering of silicon carbide, using high-purity, ultrafine silicon carbide powders doped with sintering aids as raw materials. Through the application of advanced ceramic forming techniques—including extrusion molding, dry pressing, and isostatic pressing—the initial product shapes are meticulously crafted. Subsequently, under strict protection in an inert atmosphere, the green bodies are sintered at extremely high temperatures up to 2,200°C.

Outstanding performance, wide-ranging applications

Taking the ceramic firing sector as an example, the company’s CORESIC silicon carbide support plates fully demonstrate their advantages.

High hardness and low density

Its hardness is nearly that of diamond, yet it boasts a lower density. This combination enables the material to deliver exceptional wear resistance while remaining lightweight, making it an ideal choice for weight-sensitive applications such as the manufacturing of aerospace components.

Excellent thermal shock resistance

Its thermal conductivity is comparable to that of aluminum alloys and five times higher than that of alumina, combined with a low coefficient of thermal expansion.
Moreover, CORESIC pressureless-sintered silicon carbide exhibits outstanding thermal-shock resistance, maintaining structural stability even under rapid temperature fluctuations, making it suitable for a wide range of applications such as linings for high-temperature furnaces and kilns, and heat exchangers.

High Strength and Stability

It exhibits extremely high mechanical strength, with a flexural strength four times that of recrystallized silicon carbide and comparable to nitride-bonded carbon.
Its flexural strength is twice that of silicon carbide and 50% higher than that of reaction-sintered silicon carbide. Under high-temperature conditions—up to 1,700°C in air and up to 1,950°C in inert atmospheres—even under load, its flexural strength remains stable, enabling long-term, reliable service and ensuring stability and reliability in high-temperature industrial applications.

Excellent antioxidant and creep resistance性能

In high-temperature applications under oxidizing atmospheres, the product’s high density and high purity enable the formation of a protective silica layer on its surface, effectively slowing further oxidation and significantly extending service life. Moreover, the material exhibits outstanding creep resistance at elevated temperatures; in tests conducted at 1,600°C, the creep resistance of reaction-bonded silicon carbide (R-SiC) and nitride-bonded silicon carbide (N-SiC) improved by 400%, thereby substantially reducing dimensional deformation and ensuring dimensional accuracy and stable performance during long-term high-temperature service.

Excellent corrosion resistance


Thanks to its high density, low porosity, and chemical inertness, this product can even withstand ultra-high temperatures,
It can operate reliably in hot gas and liquid environments, as well as in oxidizing and corrosive atmospheres, making it suitable for highly corrosive industrial settings such as chemical processing and metallurgy.

Take the ceramic firing sector as an example: the company’s CORESIC silicon carbide support plates fully demonstrate their advantages. Compared with similar products on the market: they are approximately 50%–70% lighter, significantly reducing the load on the kiln; they exhibit exceptionally rapid heat absorption and release—five times faster than alumina materials and approaching the thermal conductivity of metallic aluminum—enabling quick and uniform heat transfer. This effectively eliminates droplet-shaped defects on glaze surfaces caused by temperature non-uniformity, reduces energy consumption, revolutionizes kiln firing processes, and completely addresses the industry’s longstanding pain points of thin plates being prone to deformation and poor durability.

Join Hands with Dongyue to Co-create the Future

Chaozhou Dongyue Materials Technology Co., Ltd. is driven by innovation and grounded in quality. Backed by a professional team, cutting-edge technology, a diverse product portfolio, and exceptional service, the company has rapidly risen to prominence in the new materials sector. Whether you are an enterprise seeking innovative material solutions or an industry partner aiming to advance technological upgrades, Dongyue Materials Technology is your ideal collaborator. Let us join forces, build on the foundation of innovative materials, and together create a brighter future—writing a glorious chapter in the vast frontier of materials science and technology.

Our Advantages

Chaozhou Dongyue Materials Technology Co., Ltd. is dedicated to the research, development, and promotion of novel pressureless-sintered silicon carbide support plates. Leveraging advanced technology and innovative concepts, the products it offers boast numerous significant advantages.

No coating required, simplifying the production process.

The pressureless-sintered silicon carbide support plate is manufactured using a specialized process and high-quality materials, exhibiting exceptionally high hardness and outstanding high-temperature resistance—capable of withstanding temperatures up to 1800°C. It also boasts excellent thermal conductivity and thermal shock resistance, making it suitable for high-temperature industrial furnaces and kilns across various industries, including ceramics, glass, and metallurgy. During ceramic firing, this support plate effectively ensures product stability under extreme thermal conditions, preventing defects such as deformation and cracking caused by issues with the support material, thereby significantly enhancing product quality and yield.

No coating required, simplifying the production process.

Unlike conventional reaction-sintered silicon carbide support plates, the pressureless-sintered silicon carbide support plates developed by Dongyue Materials Technology do not adhere to the sintered products, eliminating the need to apply alumina slurry or other anti-adhesion coatings before each use. This not only streamlines the operational process and reduces labor costs, but also prevents dust pollution caused by coating application and mitigates the potential impact of coating degradation on product quality, thereby making the production process more environmentally friendly and efficient.

Lightweight design enhances kiln efficiency.

This firing plate features a well-optimized density and weighs less than comparable products, thereby reducing the thermal load on the kiln while maintaining high strength and load-bearing capacity. This helps improve kiln loading efficiency and operational performance. In addition, its excellent thermal conductivity ensures rapid heat transfer, resulting in more uniform temperature distribution within the kiln, lower energy consumption, and shorter firing cycles—delivering significant economic benefits to the enterprise.

Customized services to meet individual needs

Dongyue Materials Technology fully understands the unique, customized needs of each customer throughout their manufacturing processes and therefore offers tailored solutions. By precisely addressing specific requirements regarding carrier plate dimensions, shapes, performance, and other parameters, we develop bespoke products that are perfectly aligned with each client’s production needs, ensuring they receive the most suitable solution to help their businesses stand out in an increasingly competitive market.

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