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Alumina Ceramic Companies and Suppliers

IQS Directory is a top industrial directory listing of leading industrial alumina ceramic manufacturers and suppliers. Access our comprehensive index to review and source alumina ceramic manufacturers with preview ads and detailed product descriptions. These alumina ceramic companies can design, engineer and manufacture alumina ceramics to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these alumina ceramic manufacturers and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. Read customer reviews and product specific news articles. We are the right resource for your information requirement whether its for a manufacturer of aluminum oxide, aluminum nitride, boron nitride.

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The alumina ceramic that we offer cannot be topped! We provide technical and industrial ceramics to a broad customer base around the world. Our products serve a wide range of diverse industries including fluid handling, food processing, military, textiles and much more. Our technicians will work closely with you to come up with a product to fit your exact specifications! Visit our website today to learn more!
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We produce many grades of Alumina products by injection molding, dry pressing, and extrusion processes. Our processes are used to meet most engineering requirements. Our Alumina ceramics are used in pump seals, temperature sensors, knife sharpeners, refractory anchors, and more. Call C-Mac International, LLC today for a free price quote!
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Here at Kadco Ceramics, we work to provide all of our customers with an unmatched customer experience! We work day in and day out to provide the very best in our products. Our engineering & manufacturing capabilities encompass materials such as zirconia, piezo, zirconia toughened alumina & machinable ceramics. Our engineers will consult with you personally to provide the most cost effective solution to your machining needs. Give us a call today to find out more!
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AdTech Ceramics manufactures co-fired ceramic electronic packages and injection molded ceramics. As an AS9100C and ISO 9001:2008 certified, you can trust that our products are fabricated under strict quality control and you will receive a superior product. We often work with complex ceramic components and we can custom design a solution for you.
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Our alumina ceramic provides high mechanical strength as well as chemical resistance. We are proud to be able to offer advanced finishing services such as precision grinding and lapping, laser machining, engineering, design and many others. We hope you let us assist you in coming up with a solution to your next complex problem! Fill out our request for quote form on our website to get started today! Let us do the work for you!
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Industry Information

Reduce Product Costs with Alumina Ceramics

Alumina ceramics provide one of the strongest insulating properties of any engineering ceramic. Alumina ceramics provide many benefits, like increased strength, hardness, and insulating potential, but did you also know that they can save money during manufacturing as well?

Using alumina ceramic products in heatsinks can save manufacturers a surprisingly large amount of money. Because of its high thermal performance and low materials cost, alumina reduces the cost of materials, increases the performance of the product, and also makes it easier to construct the heatsink.

Using an alumina coated heatsink provides the following three benefits:

1.With the use of alumina, it is possible to remove the MCPCB and thermal interface material used in other heatsink deisgns. Removing the original thermal interface material and the MCPCB components allows the overall cost of the product to drop.

2. Fewer layers on the heaksink make the thermal path more efficient between the heatsink and the main component.

3. Using alumina reduces the thermal resistance in the heatsink, which leads to the ability for denser component layouts.

Since using alumina ceramics for heatsinks is a relatively new technology, the potential for this industry is great. The use of alumina has technological advantages and commercial benefits, as well as energy-saving benefits that any manufacturer will be interested in. the use of alumina products will change the entire manufacturing industry for both the LED industries and all other forms of electronics.

Alumina ceramic manufacturers can greatly benefit by tapping into the new technology and providing the solution to the next stage of technology advancement.

Alumina Ceramic

Alumina ceramic, or aluminum oxide, is an extremely durable and cost effective option used in many industrial and commercial applications. The strong ionic interatomic bonding of alumina provides it with many attributes desirable in ceramic production. Extreme hardness, resistance to weathering, high density, wear resistance, thermal conductivity, high stiffness, chemical resistance and compressive strength all put this ceramic in high demand even in comparison with other ceramics. Aluminum oxides offer up to twenty times the thermal conductivity of most other oxides.

Many qualities of alumina ceramic, including its abrasive grains, make it perfect for applications such as metalizing, plating and welding operations. Sand blasting, polishing and surface preparation are other uses of alumina. It is one of the most common pre-finishes for wood flooring due to its protective qualities. Many industries from automotive to medical to aerospace utilize the durability of this material for any number of applications such as engine components and even prosthetic limbs. The strength of alumina is demonstrated by its frequent use in the production of ceramic armor. Although ceramics in general are often more expensive than metal options, alumina is one of the most cost effective ceramics available and still provides the product longevity to outlast many metals.

As do all ceramics, alumina starts as a granular powder that may be used in its pure form, but is most often mixed with other stabilizers that are chosen based on the advantageous attributes they can contribute. Zirconia, for example, is often added to increase fracture toughness. Pure alumina is white, though additional components, such as manganese oxide, may cause color changes in the final product. This formula is then manufactured by means of slip casting, pressing, extrusion, or injection molding processes used to form the desired product. Despite the many benefits of alumina ceramic, it is more limited than its metal, polymer and rubber counterparts in ways that it can be manufactured. Alumina cannot be blown, stretched, thermoformed or forged, as these processes may cause it to be brittle and leave it susceptible to breakages. Categorized by phase and grade, the choice of a specific aluminum oxide depends largely on its use. Smelter grade, for example, is used in one of the most common alumina applications, the manufacture of aluminum metal. Calcined, low soda, reactive, tabular, fused and high purity are other phase options used in a variety of industrial applications.

Engineering Properties*

Aluminum Nitride

Mechanical

Units of Measure

SI/Metric

(Imperial)

Density

gm/cc (lb/ft3)

3.26

(203.5)

Porosity

% (%)

0

(0)

Color

-

gray

-

Flexural Strength

MPa (lb/in2x103)

320

(46.4)

Elastic Modulus

GPa (lb/in2x106)

330

(47.8)

Shear Modulus

GPa (lb/in2x106)

-

-

Bulk Modulus

GPa (lb/in2x106)

-

-

Poisson's Ratio

-

0.24

(0.24)

Compressive Strength

MPa (lb/in2x103)

2100

(304.5)

Hardness

Kg/mm2

1100

-

Fracture Toughness KIC

MPa•m1/2

2.6

-

Maximum Use Temperature
(no load)

°C (°F)

-

-

Thermal

Thermal Conductivity

W/m•°K (BTU•in/ft2•hr•°F)

140-180

(970-1250)

Coefficient of Thermal Expansion

10-6/°C (10-6/°F)

4.5

(2.5)

Specific Heat

J/Kg•°K (Btu/lb•°F)

740

(0.18)

Electrical

Dielectric Strength

ac-kv/mm (volts/mil)

17

(425)

Dielectric Constant

@ 1 MHz

9

(9)

Dissipation Factor

@ 1 MHz

0.0003

(0.0003)

Loss Tangent

@ 1 MHz

-

-

Volume Resistivity

ohm•cm

>1014

-

*All properties are room temperature values except as noted.
The data presented is typical of commercially available material and is offered for comparative purposes only. The information is not to be interpreted as absolute material properties nor does it constitute a representation or warranty for which we assume legal liability. User shall determine suitability of the material for the intended use and assumes all risk and liability whatsoever in connection therewith.

Engineering Properties*

94% Aluminum Oxide

Mechanical

Units of Measure

SI/Metric

(Imperial)

Density

gm/cc (lb/ft3)

3.69

(230.4)

Porosity

% (%)

0

(0)

Color

-

white

-

Flexural Strength

MPa (lb/in2x103)

330

(47)

Elastic Modulus

GPa (lb/in2x106)

300

(43.5)

Shear Modulus

GPa (lb/in2x106)

124

(18)

Bulk Modulus

GPa (lb/in2x106)

165

(24)

Poisson's Ratio

-

0.21

(0.21)

Compressive Strength

MPa (lb/in2x103)

2100

(304.5)

Hardness

Kg/mm2

1175

-

Fracture Toughness KIC

MPa•m1/2

3.5

-

Maximum Use Temperature
(no load)

°C (°F)

1700

(3090)

Thermal

Thermal Conductivity

W/m•°K (BTU•in/ft2•hr•°F)

18

(125)

Coefficient of Thermal Expansion

10-6/°C (10-6/°F)

8.1

(4.5)

Specific Heat

J/Kg•°K (Btu/lb•°F)

880

(0.21)

Electrical

Dielectric Strength

ac-kv/mm (volts/mil)

16.7

(418)

Dielectric Constant

@ 1 MHz

9.1

(9.1)

Dissipation Factor

@ 1 kHz

0.0007

(0.0007)

Loss Tangent

@ 1 kHz

-

-

Volume Resistivity

ohm•cm

>1014

-

 

96% Aluminum Oxide

Mechanical

Units of Measure

SI/Metric

(Imperial)

Density

gm/cc (lb/ft3)

3.72

(232.2)

Porosity

% (%)

0

(0)

Color

-

white

-

Flexural Strength

MPa (lb/in2x103)

345

(50)

Elastic Modulus

GPa (lb/in2x106)

300

(43.5)

Shear Modulus

GPa (lb/in2x106)

124

(18)

Bulk Modulus

GPa (lb/in2x106)

172

(25)

Poisson's Ratio

-

0.21

(0.21)

Compressive Strength

MPa (lb/in2x103)

2100

(304.5)

Hardness

Kg/mm2

1100

-

Fracture Toughness KIC

MPa•m1/2

3.5

-

Maximum Use Temperature
(no load)

°C (°F)

1700

(3090)

Thermal

Thermal Conductivity

W/m•°K (BTU•in/ft2•hr•°F)

25

(174)

Coefficient of Thermal Expansion

10-6/°C (10-6/°F)

8.2

(4.6)

Specific Heat

J/Kg•°K (Btu/lb•°F)

880

(0.21)

Electrical

Dielectric Strength

ac-kv/mm (volts/mil)

14.6

(365)

Dielectric Constant

@ 1 MHz

9.0

(9.0)

Dissipation Factor

@ 1 kHz

0.0011

(0.0011)

Loss Tangent

@ 1 kHz

-

-

Volume Resistivity

ohm•cm

>1014

-

 

99.5% Aluminum Oxide

Mechanical

Units of Measure

SI/Metric

(Imperial)

Density

gm/cc (lb/ft3)

3.89

(242.8)

Porosity

% (%)

0

(0)

Color

-

ivory

-

Flexural Strength

MPa (lb/in2x103)

379

(55)

Elastic Modulus

GPa (lb/in2x106)

375

(54.4)

Shear Modulus

GPa (lb/in2x106)

152

(22)

Bulk Modulus

GPa (lb/in2x106)

228

(33)

Poisson's Ratio

-

0.22

(0.22)

Compressive Strength

MPa (lb/in2x103)

2600

(377)

Hardness

Kg/mm2

1440

-

Fracture Toughness KIC

MPa•m1/2

4

-

Maximum Use Temperature
(no load)

°C (°F)

1750

(3180)

Thermal

Thermal Conductivity

W/m°K (BTU•in/ft2•hr•°F)

35

(243)

Coefficient of Thermal Expansion

10-6/°C (10-6/°F)

8.4

(4.7)

Specific Heat

J/Kg•°K (Btu/lb•°F)

880

(0.21)

Electrical

Dielectric Strength

ac-kv/mm (volts/mil)

16.9

(420)

Dielectric Constant

@ 1 MHz

9.8

(9.8)

Dissipation Factor

@ 1 kHz

0.0002

(0.0002)

Loss Tangent

@ 1 kHz

-

-

Volume Resistivity

ohm•cm

>1014

-

*All properties are room temperature values except as noted.
The data presented is typical of commercially available material and is offered for comparative purposes only. The information is not to be interpreted as absolute material properties nor does it constitute a representation or warranty for which we assume legal liability. User shall determine suitability of the material for the intended use and assumes all risk and liability whatsoever in connection therewith.

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