Ceramic Armor - Ceramic Materials for Vehicular and Personal Armor Applications from CoorsTek

Topics Covered

Background

Worldwide Leaders in Technical Ceramics

Performance Advantages

Variety of Materials for a Variety of Armor Applications

CoorsTek Ceramic Armor Materials Properties

Applications of CoorsTek Ceramic Armor

Advanced Ceramic Vehicle Tiles

Next-Generation Ceramic Torso Plates

Advanced Manufacturing Capabilities

Expert Design Assistance for Amazing Performance

Quality with a Passion for Excellence

For nearly 100 years...

Background

Worldwide Leaders in Technical Ceramics

A recognized worldwide leader in the engineering and manufacturing of technical ceramics, CoorsTek provides advanced materials and design configurations for ballistic-grade ceramics used in appliqué and integrated armor systems.

Performance Advantages

CoorsTek CeraShieldTM ceramics offer many advantages over conventional materials. Our specially formulated ceramic armor materials provide:

         Low weight

         High hardness

         Controlled, uniform microstructure

         Dimensional stability over wide temperature range

         Compatibility for use in finished armor systems with proven ballistic performance for National Institute of Justice (N.I.J.) and international design standards(C).

Variety of Materials for a Variety of Armor Applications

CoorsTek offers a wide range of CeraShieldTM materials to satisfy your specific ballistic application:

         High-density aluminum oxides

         Zirconia-toughened aluminas

         Boron carbides

         Silicon carbides

CoorsTek Ceramic Armor Materials Properties

CeraShieldTM Ceramic Armor Materials

Property

Units

Test

AD-90 90% Alumina

Z-PLUSTM 94 Zirconia-Impr. Alumina

AD-96 96% Alumina

FG-98 98% Alumina

CAP 4 98.5% Alumina

Density

g/cc

ASTM-C 20

3.60

3.70

3.72

3.80

3.80

Flexural Strength (MOR), 20° C

MPa

(psi X 103)

ASTM-F417

338 (49)

352 (51)

358 (52)

375 (54)

Elastic Modulus, 20° C

GPa (psi X 106)

ASTM-C848

276 (40)

303 (44)

303 (44)

350 (51)

350 (51)

Poisson's Ratio, 20° C

ASTM-C848

0.22

0.21

0.21

0.22

0.22

Compressive Strength, 20° C

MPa (psi X 103)

ASTM-C773

2482 (360)

2103 (305)

2068 (300)

2500 (363)

2500 (363)

Hardness

GPa (kg/mm2)

KNOOP 1000 gm ROCKWELL 45N

10.4 (1058)
75

11.5 (1175)
78

11.5 (1175) 78

13.7 (1400)
82

13.7 (1400)
82

Fracture Toughness, Klc

MPa.m½

Notched Beam

3 – 4

4 – 5

4 – 5

4 – 5

4 – 5

Thermal Conductivity, 20° C

W/m K

ASTM-C408

16.7

22.4

24.7

27.5

27.5

CTE, 25-1000° C

1X 10-6/ °C

ASTM-C372

8.1

8.2

8.2

8.2

8.2

CoorsTek Ceramic Armor Materials Properties - continued

CeraShieldTM Ceramic Armor Materials

Property

Units

Test

CAP 3 99.5% Alumina

SC-DS Direct-Sintered Silicon Carbide

SC-RB Reaction-Bonded Silicon Carbide

Boron Carbide Reaction-Bonded Boron Carbide

Density

g/cc

ASTM-C 20

3.90

3.15

3.10

2.65

Flexural Strength (MOR), 20° C

MPa (psi X 103)

 

379 (55)

480 (70)

462 (67)

250 (36)

Elastic Modulus, 20° C

GPa (psi X 106)

ASTM-C848

370 (54)

410 (59)

393 (57)

379 (55)

Poisson's Ratio, 20° C

ASTM-C848

0.22

0.21

0.19

0.18

Compressive Strength, 20° C

MPa (psi X 103)

ASTM-C773

2600 (377)

3500 (507)

2500 (363)

1721 (250)

Hardness

GPa (kg/mm2)

KNOOP 1000 gm ROCKWELL 45N

14.1 (1440) 83

26 (2800)
90

24.5 (2500)
*

25.5 (2600)
*

Fracture Toughness, Klc

MPa.m½

Notched Beam

4 – 5

3 – 4

3 - 4

3 - 4

Thermal Conductivity, 20° C

W/m K

ASTM-C408

30.0

150.0

100.0

50.0

CTE, 25-1000° C

1X 10-6/ °C

ASTM-C372

8.2

3.5

3.5

4.5

*Not available, Note: The chart is intended to illustrate typical properties. Engineering data is representative. Property values vary somewhat with method of manufacture, size, and shape of part. Any suggested applications are not made as a representation or warranty that the material will ultimately be suitable for such applications. The customer is ultimately responsible for all design and material suitability decisions. Data contained herein is not to be construed as absolute and does not constitute a representation or warranty for which CoorsTek assumes legal responsibility. ANY WARRANTY OR REPRESENTATION FOR WHICH COORSTEK IS RESPONSIBLE SHALL BE SUBJECT TO A SEPARATELY NEGOTIATED AGREEMENT. (C)CeraShieldTM armor ceramics are not rated by the National Institute of Justice (N.I.J.). Manufacturers of finished ceramic armor systems have achieved N.I.J. Level III and IV ratings for complete armor systems incorporating CeraShieldTM armor ceramic components.

Applications of CoorsTek Ceramic Armor

Advanced Ceramic Vehicle Tiles

Exceptionally well-suited for vehicular applications, CoorsTek® produces lightweight technical ceramic tiles using tight-tolerance manufacturing standards, high-purity formulations, and controlled microstructures to ensure durable, everyday performance and a consistently reliable defense to unexpected threats.

         Shapes and Sizes for All Needs

CoorsTek offers CeraShieldTM advanced ceramic vehicle tiles in a variety of shapes and sizes. Choose from square or hexagon shapes at various imperial and metric measurements, or let our specialists help you select custom shapes, thicknesses, and configurations to optimize your armor system design.

         Modular Assembly

CoorsTek provides assembly services to form multiple tiles into custom panels of complex shapes and configurations – including holes & cutouts. Perfect for aircraft, armored vehicles, and executive vehicles, our modular panels provide a custom fit and superior performance.

         Vacuum-Bonding Capabilities

We’ve perfected the bonding process to perform under some of the harshest industrial environments on the planet. Our specialized process bonds the ceramic to a variety of customer specified substrate materials for a thoroughly robust and integrated solution.

AZoM - Metals, ceramics, polymers and composites - CoorsTek ceramic armor components for vehicular armor applications.

Figure 1. CoorsTek ceramic armor components for vehicular armor applications.

Next-Generation Ceramic Torso Plates

CoorsTek offers lightweight, superior-quality torso plates in a wide variety of shapes, sizes, thicknesses, and materials including:

         CeraShieldTM High-Density Aluminum Oxides

o        The traditional monolithic plate material, CoorsTek offers extremely high-volume, multi-facility production capacity

o        Standard sizes and shapes including all SAPI sizes.

o        Custom thicknesses available from 1 mm and up

         CeraShieldTM Silicon Carbides

o        Superior hardness for advanced threats

o        Lower weight with higher performance benefits

         CeraShieldTM Boron Carbides

o        Lowest density for ultra-lightweight designs

Representative examples of our standard plates are illustrated below. Most sizes and shapes are offered in all CeraShieldTM materials. Custom shapes, sizes, and thicknesses are readily manufactured to customer specification.

AZoM - Metals, ceramics, polymers and composites - CoorsTek ceramic armor components for personal armor applications.

Figure 2. CoorsTek ceramic armor components for personal armor applications.

Advanced Manufacturing Capabilities

Our state-of-the-art forming methods and statistically controlled processing ensure leading-edge, low-cost manufacturing. Advanced capabilities in green machining and precision grinding enable extreme customization of design to meet the most demanding applications.

Expert Design Assistance for Amazing Performance

CoorsTek engineers offer assistance:

         Selecting the BEST material for YOUR application

         Designing for manufacturability:

o        Optimize performance

o        Minimize manufacturing cost

Quality with a Passion for Excellence

CoorsTek OpXSM Operational Excellence quality and manufacturing system blends proven, best-practice techniques like lean, six sigma, on-line SPC, and ISO 9000-2000 certification to ensure exceptional product quality and traceability.

For nearly 100 years...

Since 1910, CoorsTek has solved technical challenges for innovative customers like you. With armor tile production dating back to the 1960’s our long-term experience, broad range of materials, variety of cost-effective manufacturing techniques, and unparalleled capacity (over two million square feet of manufacturing capacity) provide peace of mind for manufacturers around the globe.

 

Source: CoorsTek

 

For more information on this source please visit CoorsTek

 

Date Added: Sep 18, 2006
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