alumina long bar

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Wuxi Maoqian New Material Technology Co.,Ltd.

 5 month year

Product details

Premium 99.5% Alumina Long Bar Solutions for Industrial Excellence

In the realm of advanced materials engineering, the demand for high-purity ceramic components continues to rise across diverse industrial sectors. Our flagship product line features the 99.5% Alumina Long Bar, a precision-engineered solution designed to meet the rigorous standards of modern manufacturing and scientific research. This specific grade of aluminum oxide ceramic offers an exceptional balance of mechanical strength, thermal stability, and electrical insulation properties, making it an indispensable component for applications requiring durability under extreme conditions. Whether you are seeking standard dimensions or require a Custom Alumina Long Bar tailored to unique specifications, our manufacturing capabilities ensure consistent quality and dimensional accuracy that exceed industry expectations.

Overview of High-Purity Ceramic Technology

The core of our offering lies in the sophisticated processing of alumina powder into dense, homogeneous structures. The 99.5% Alumina Long Bar is not merely a raw material; it is a testament to advanced sintering techniques that eliminate porosity and enhance structural integrity. By maintaining such a high percentage of aluminum oxide, we achieve superior resistance against chemical corrosion and wear, which are critical factors in prolonging the lifespan of machinery and equipment. This product serves as a foundational element in various high-tech industries, providing reliable performance where other materials might fail due to heat, friction, or chemical exposure. The versatility of this ceramic allows it to be utilized in everything from semiconductor manufacturing to heavy-duty industrial machinery, ensuring that clients receive a solution that is both robust and adaptable.

Key Characteristics and Technical Advantages

Understanding the technical prowess of the Precision Alumina Long Bar requires a closer look at its intrinsic material properties. First and foremost, the high purity level of 99.5% ensures minimal impurities, which directly correlates with enhanced dielectric strength and thermal conductivity. This makes the bar an excellent insulator in high-voltage environments while simultaneously managing heat dissipation effectively. The material exhibits exceptional hardness, ranking high on the Mohs scale, which grants it remarkable abrasion resistance. This characteristic is particularly beneficial in applications involving sliding contacts or abrasive media, where metal components would quickly degrade.

Furthermore, the thermal shock resistance of our alumina bars is significantly improved through controlled cooling processes during manufacturing. This allows the components to withstand rapid temperature changes without cracking or fracturing, a common failure mode in lower-grade ceramics. The low coefficient of thermal expansion ensures dimensional stability even when subjected to fluctuating temperatures, maintaining precise tolerances over time. Additionally, the chemical inertness of 99.5% alumina means it does not react with most acids, alkalis, or organic solvents, making it ideal for use in harsh chemical processing environments. These combined attributes position the Precision Alumina Long Bar as a superior choice for engineers and designers seeking reliability and longevity in their systems.

Detailed Product Specifications and Manufacturing Process

The production of each Custom Alumina Long Bar involves a meticulous multi-stage process that begins with the selection of ultra-fine alumina powders. These powders are carefully mixed with binding agents and shaped using isostatic pressing or extrusion techniques, depending on the desired geometry and density requirements. The green bodies are then subjected to high-temperature sintering in controlled atmosphere furnaces, a process that densifies the material and achieves the final microstructure. For our 99.5% Alumina Long Bar variants, the sintering temperature is optimized to maximize grain growth while minimizing pore formation, resulting in a translucent appearance indicative of high density.

Post-sintering, the bars undergo precision grinding and polishing to achieve tight dimensional tolerances, often within microns. This step is crucial for applications requiring exact fits, such as in optical instruments or precision machinery. The surface finish can be customized to meet specific roughness requirements, ranging from mirror-like finishes for optical clarity to matte finishes for enhanced grip or coating adhesion. Quality control measures include rigorous testing for density, flexural strength, and electrical resistivity, ensuring that every batch meets the stringent standards required by global industries. Clients opting for a Custom Alumina Long Bar benefit from our engineering team's expertise in optimizing these parameters to suit their specific operational needs, whether it involves adjusting length, diameter.The performance is superior to that of Alumina Ceramic & High Purity Alumina Ceramic.

Performance is not lower than that of Zirconia ceramic & Aluminium Nitride ceramic.

AlUMINA TECH DATA

ITEM	UNIT	99.9 ALUMINA
Density	G/cm3	3.94
Bending Resistance	Mpa	500
Compressive Strength	Mpa	3300
Elasticity Modulus	Gpa	400
Shock Strength	Mpam/2	5.2
Vaporization Coefficient	M	12
Vickers Hardness	HV0.5	2000
Thermal Expansivity	10-6K-1	8.0
Conductivity	W/MK	28
Thermal Shock Resistance	AT℃	280
Maximum Service Temperature	℃	1750
20℃ Volume Resistance	Ω	≥1015
Dielectric Strength	KV/mm	30
Apparent Porosity	％	0
Permittivity	Er	10
Dielectric Loss Angle	tanδ	0.001

ALUMINA POWDER TECH DATA

ITEM	LS-110	LS-120	LS-130	LS-110F	LS-220	LS-210
LOI(％)	0.02	0.02	0.05	0.08	0.03	0.01
Na2O(％)	0.05	0.04	0.03	0.05	0.07	0.08
SiO2(％)	0.07	0.07	0.07	0.09	0.02	0.02
Fe2O3(％)	0.03	0.03	0.03	0.03	0.02	0.02
Al2O3(％)	99.9	99.9	99.9	99.9	99.9	99.9
average grain diameter(um)	1.7	2.1	2.2	1.1	2.7	2.9
αgrain diameter(um)	1-2	1-3	2-4	1-2	2-3	3-5
BET Surface Area(m2/g)	1.9	1.4	1.4	3.2	1.6	0.9
Pressure-induced volume density(g/cm3)*	2.22	2.27	2.31	2.29	2.22	2.32
Forming density(g/cm3)**	2.13	2.20	2.23	2.33	2.17	2.30
Sintering volume density(g/cm3)**	3.78	3.79	3.78	3.89	3.81	3.77
Line collection efficiency(％)	18.0	17.2	16.7	15.7	17.5	15.3

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Wuxi Maoqian New Material Technology Co.,Ltd.

 Audited supplier

5 month

Address: Wuxi, China

Main Product: Alumina Ceramics, Zirconia ceramics, Ceramic tubes, Ceramic rods , ceramic rings, crucible

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