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Advanced Ceramics

We provide a broad range of advanced ceramic components for a variety of industries including:

  • Semiconductor
  • Medical
  • Fuel cell and energy
  • Defense and armor                                
  • Electronics
  • Chemical processing
  • Precision optics
  • and others
 

 


We offer advanced components that are heat stable, wear resistant, highly conductive or electrically dissipative,
resistant to chemical attack and extremely durable.

Our products include:

  • Ceramic guide rings
  • Ceramic Ion laser tubes
  • Ceramic laser waveguides
  • Ceramic cooling channel components    
  • Ceramic Laser tubes
  • Ceramic Electron tubes
  • Surgical device tips    
  

  
  • Ceramic Seal faces
  • Ceramic substrates, Laser Substrates, Metallized Thick Film Substrates, Thin Film Substrates etc.
  • Ceramic Fuel cell components
  • Reflectors and ceramic accessories for Excimer Laser, Diode Pump Laser, CO2 Laser, NdYag Laser etc

 
  • Ceramic sensor components            
  • Body armor
  • Vehicle armor
  • Ceramic tubes and rods
  • Ceramic ring
  • Ceramic insulator
  • Sleeves for Fiber Optics
  • Ceramic Ferrules
  • Ceramic Nozzles
  • High Alumina Crucibles
  • High Alumina Trays
  • Ball mill elements
  • any custom part
 

 

 



Featured Materials:


Aluminium Oxide Grades ( Alumina ):

Properties Units Test 85% Al2O3 90% Al2O3 94% Al2O3 96% Al2O3 98.5% Al2O3 99.5% Al2O3

99.8% Al2O3

Density gm/cc ASTM C20 3.42 3.60 3.70 3.72 3.80 3.90 3.92
Crystal Size Avg. Microns Thin Section 6 4 12 6 6 6 6
Water Absorption % ASTM 373 0000000
Flexural Strength (MOR) 20C MPa (psi x 10^3) ASTM F417 296 (43) 338 (49) 352 (51) 358 (52) 375 (54) 379 (55) 375 (54)
Elastic Modulus 20C GPa (psi x 10^6) ASTM C848 221 (32) 276 (40) 303 (44) 303 (44) 350 (51) 370 (54) 370 (54)
Compressive Strength 20C MPa (psi x 10^3) ASTM C773 1930 (280) 2482 (360) 2103 (305) 2068 (300) 2500 (363) 2600 (377) 2500 (363)
Hardness GPa (kg x mm^2) Knoop 1000 gm
Rockwell 45N
9.4 (960)
73
10.4 (1058)
75
11.5 (1175)
78
11.5 (1175)
78
13.7 (1400)
82
14.1 (1440)
83
14.1 (1440)
83
Thermal Conductivity 100C W/m K ASTM C408 16.0 16.7 22.4 24.7 27.5 30.0 30.0
Coefficient of Thermal Expansion 25-1000C 1X10^-6 /C ASTM C372 7.2 8.1 8.2 8.2 8.2 8.2 8.2
Thermal Shock Resistance C Quenching 300 250 250 250 200 200 200
Max Use Temp C No Load Cond. 1400 1500 1700 1700 1700 1750 1750
Dielectric Strength ac-kV/mm (ac V/mil) ASTM D116 9.4 (240) 8.3 (210) 8.3 (210) 8.3 (210) 8.7 (220) 8.7 (220) 8.7 (220)
Dielectric Constant 1MHz 25C ASTM D150 8.2 8.8 9.1 9 9.6 9.7 9.8



Zirconium Oxide Grades ( Zirconia ):

Properties Units Test Zirconia Toughened Alumina Magnesia partially Stabilized Zirconia Yttria partially stabilized Zirconia (Sintered) Yttria partially stabilized Zirconia (Hipped)
Density gm/cc ASTM C20 4.01 5.72 6.02 6.07
Crystal Size Avg. Microns Thin Section 2 35 1 1
Water Absorption % ASTM 373 0000
Flexural Strength (MOR) 20C MPa (psi x 10^3) ASTM F417 450 (65) 758 (110) 1240 (180) 1720 (250)
Elastic Modulus 20C GPa (psi x 10^6) ASTM C848 360 (52) 200 (29) 210 (30) 210 (30)
Compressive Strength 20C MPa (psi x 10^3) ASTM C773 2900 (421) 1750 (254) 2500 (363) 2500 (363)
Hardness GPa (kg x mm^2) Knoop 1000 gm
Rockwell 45N
14.4 (1475)
85
11.8 (1200)
77
12.7 (1300)
81
12.7 (1300)
81
Thermal Conductivity 100C W/m K ASTM C408 27.0 2.2 2.2 2.2
Coefficient of Thermal Expansion 25-1000C 1X10^-6 /C ASTM C372 8.3 10.2 10.3 10.3
Thermal Shock Resistance C Quenching 300 350 350 350
Max Use Temp C No Load Cond. 1500 500 1500 1500
Dielectric Strength ac-kV/mm (ac V/mil) ASTM D116 9.0 (228) 8.4 (240) 9.0 (228) 9.0 (228)
Dielectric Constant 1MHz 25C ASTM D150 10.6 28.0 29.0 29.0

 


Other materials available:               
Silicon Carbide ( SiC)
Boron Carbide ( B4C )
Macor
Mullite
Aluminium Nitride ( AlN )
Cordierite 
                   

 



Surface Finishes Chart
R a-Um- 0.025 0.05 0.1 0.2 0.4 0.8 1.6 3.2 6.3 12.5 25 50
R a-Uinch
1 2 4 8 16 32 63 125 250 500 1000 2000
N Grade N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12
Finish Fine lapped Lapping
Superfinishing
Lapping
Superfinishing
Ground Ground Ground Smooth Turned Smooth Turned Medium Turned Medium Turned Rough Machined Rough Machined

 

 
Ultramat Advanced Materials and Technologies LTD.
Phone: +972-9-8826714 | Fax: +972-9-8826715 | e-mail: office@ultra-mat.com
Kfar Haim 42945, Israel
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