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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.

  • Myrtle Beach, SC 609-397-8330, 609-397-8341

    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!

  • Pittsburgh, PA 412-406-7171

    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!

  • Fremont, CA 510-249-9700

    If you are in need of alumina ceramic parts, Applied Ceramics has the products you need. Our assortment of alumina ceramic materials include ACI-995 Alumina and ACI-998 Alumina. Our sales staff is ready to help you find the material best for your application. When you choose Applied Ceramics, you choose high quality alumina ceramic components and excellent customer service.

  • Quakertown, PA 215-536-3500

    Insaco provides custom grinding and machining services to fabricate precision parts from sapphire, quartz, and most technical ceramics including alumina, zirconia, silicon carbide, silicon nitride, aluminum nitride, and others. Engineers are available to discuss material options/alternative recommendations, as well as design concepts to help our customers minimize fabrication costs. Since 1947 Insaco has enjoyed an extremely strong reputation for reliably meeting the toughest grinding and machining requirements in working with these difficult materials.

  • Atlanta, GA 770-448-6888

    Our Versagrid® honeycomb ceramic products are custom made to your specifics. Applied Ceramics provides product in mullite, fused silica, cordierite, activated carbon and alumina ceramics. As ceramic manufacturers, our cell density runs 4-400 cells psi. We’ve been in business since 1967. Contact us.

  • Holbrook, MA 781-961-5297

    Ceramics machining and much more is what you will find at Mica-Tron Products. We have the ability to machine intricate parts in a wide variety of materials. In our state-of-the-art facility, we are able to offer single prototypes to large runs of thousands. Excellence in quality since 1959.

  • Tucson, AZ 520-547-0850

    Since our founding in 2001, as an AS 9100 certified aerospace research and development company, Advanced Ceramics Manufacturing we have become a leader in the production of ceramic components, custom ceramic fabrication and water soluble molds and tooling. We specialize in aerospace composites. Within our state of the art facility, we have an autoclave, wet-lab, metrology lab, ceramic firing ovens, QC lab, and two composite clean room.

  • More Alumina Ceramic Companies

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businessIndustry Information

Alumina Ceramic

Alumina ceramics are products made from the chemical compound with the same name, alumina ceramic. Alumina ceramic, also known as aluminum oxide, is a combination of aluminum and oxygen. It occurs naturally, most often as corundum, as crystalline form of the compound that, when gem quality, manifests as sapphire or ruby. Alumina ceramic is extremely hard and durable, resistant to compressive strength, resistant to weathering, resistant to chemicals, electrically insulating, highly dense and stiff and incredibly thermally conductive. In fact, it is up to twenty times more thermally conductive than the majority of other oxides. In addition, it is quite cost effective. These qualities make alumina ceramics ideal for a wide variety of industrial and commercial applications, including: automotive and aerospace engineering, medical instrument fabrication, prosthetic limb creation, ballistic ceramic armor creation, metalizing, seal ring fabrication, welding, plating and the pre-finishing of wood flooring.

Before coming any number of useful products, all alumina ceramics begin as granular powder. This powder can be used alone, but, as is usually the case, it can also be mixed with other substances and stabilizers, selected based on way or ways that they can improve the alumina. A common additive, zirconia, for instance, is added to the mix in order to increase the ceramic’s fracture toughness. Examples of other additives include manganese oxide, titania, silica, copper and brass. Note that, when it is in its natural state, alumina is white, but when mixed with additional substances, it frequently changes color. For example, alumina ceramics that are around 96% pure are typically brown in color, while those alumina ceramics that are less pure, around 88% for instance, are usually pink.

In addition, alumina is categorized by phase and grade. These categorizations help manufacturers understand the properties of a particular aluminum oxide and how it might benefit an application. For instance, one of the most commonly used aluminum oxides is smelter grade alumina, also known as metallurgical grade alumina, which is non-toxic, non-flammable and non-hazardous. This stable and low maintenance alumina is the nearly exclusively selected grade of alumina aluminum metal production. Other alumina grades include high purity alumina, calcined alumina, fused alumina, low soda alumina, tabular alumina and reactive alumina. High-purity alumina is defined as any alumina that has a purity of 99.99% or above. It is used to manufacture instrument windows, synthetic gemstones and laser tubes and other laser components. Next, calcined alumina is created when aluminum hydroxide is heated above 1100?. Calcined alumina is known to improve the performances of both monolithic and shaped refractories. Fused alumina, which is formed in an electric arc furnace, is used in a crushed form. Low soda alumina is defined as any alumina that has a soda content of <0.1% by weight. It is used primarily with and as electronic and electrical components. Tabular alumina, which is recrystallised or sintered a-alumina, is used in both unshaped and shaped refractories for waste incineration, petrochemical, glass, cement steel and foundry applications. Finally, reactive alumina is fairly pure, small crystal alumina. It used in the creation of high-performance refractories that require consistent placement characteristics and defined particle packing.

After an alumina formula has been selected and finalized, it is further processed and manufactured using any number of processes, such as injection molding, extrusion, pressing or slip casting. The only processes through which alumina ceramic products cannot be created are forging, stretching, blowing and thermoforming; all of these processes would put the alumina at risk of becoming brittle, a state that would likely lead to breakage. Finished alumina ceramics are highly useful and exhibit high performance levels and durability. Some of the most common products in which alumina ceramics are found include: grinding media, paint, plastic, sunscreen, blush, lipstick, nail polish and other cosmetics, glass, composite fiber and sodium vapor lamps. They serve roles as gas stream purifiers, sandpaper abrasives, ceramic eyes on fishing rods, coating suspensions in fluorescent lamps, material in birth control pills, material in hip replacements, electrical insulators, thermocouples, thread guides, wear components, tunnel barriers during the fabrication of superconductors and more. Alumina ceramics are particularly useful in the creation of insulation for high heat furnaces. Alumina ceramics-based insulation, which are often mixed with varying percentages of silica, can be made many forms, including in the forms of bricks, loose fibers, blankets and boards. Alumina ceramics also make excellent spark plug insulators.

Alumina is an amazingly diverse product with breathtaking prominence in the world. To find out how alumina ceramics might serve you, contact a reputable ceramic manufacturer.


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 isoffered for comparative purposes only. The information is not to beinterpreted as absolute material properties nor does it constitute arepresentation or warranty for which we assume legal liability. Usershall determine suitability of the material for the intended use andassumes 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 isoffered for comparative purposes only. The information is not to beinterpreted as absolute material properties nor does it constitute arepresentation or warranty for which we assume legal liability. Usershall determine suitability of the material for the intended use andassumes all risk and liability whatsoever in connection therewith.

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