Properties of Tube Rod Shaft Ring Bushing Sleeve Nozzle Technical Ceramic Parts
(1). Excellent in electrical insulation;
(2). High hardness and wear/corrosion resistance;
(3). High working temperature;
(4). Good thermal shock resistance;
The manufactured assemblies and ceramic components from UNIPRETEC cover a very broad spectrum in various fields of applications and several industry sectors. The sophisticated and unique specific properties of varied ceramic materials such as Alumina, Zirconia, Mixed-Oxides as well as Nitrides and Carbides allow an improvement in numerous working processes compared to the use of steel components.
1. Advanced Ceramic Materials
1.1 Alumina Oxide
Uses for Rods and Tubes Ceramic- high purity, translucent aluminum oxide and hot pressed aluminum oxide as well as marketing A Grade of sintered aluminum oxide specifically designed for armor applications. High purity, used military applications, .
1.2 Aluminum Nitride
Fully dense aluminum nitride materials. The key characteristic are High Thermal Conductivity, Electrical Insulator receptivity, Corrosion Resistance, Large, complex Shape potential Uses: Microwave, semiconductor,
1.3 Boron Nitride
Excellent wear applications and one of the hardest materials found. Used in tool bits and cutting tools.
1.4 Boron Carbide
Lightest weight technical ceramic material as well as high hardness. Fully dense boron carbide is produced by hot pressing. Other characterized as follows: Erosion resistance, high modulus, and neutron absorber. Boron Carbide used in semiconductor components, sputtering targets, wear components, boron carbide tiles, armor and boron carbide B4C nuclear
1.5 Glass Ceramics
Used for glass ceramic machining. An excellent insulator at high voltages, various frequencies, and high temperatures up to 800oC to 1000oC. Will not outgas in vacuum environments when baked out properly.
1.6 Silicon Carbide
This material has a high strength, low density, oxidation resistance (reaction bonded) characteristics. Quality thermal shock resistance, high hardness, wear resistance, low thermal expansion and electrical conductivity.
1.7 Silcon Nitride
High Thermal Conductivity Electrical Insulator Corrosion Resistant. Totally dense material having a scope of compositions that can be manufactured cost effectively including complex forms and shapes.
1.8 Zirconia
ZIrconia ceramics have high mechanical strength and toughness. Excellent surface smoothness.
Generally ceramics can be characterized as very hard, enormous wear resistant, high temperature-stable and also resistant to most of popular acids and bases. Most ceramic materials offer excellent electrical insulating properties combined with a poor thermal conductivity. These characteristics allow an operation in various application areas and branches of industry.
2. Field of application and key aspects:
- Chemical Industry (corrosion protection)
- Apparatus & Mechanical Engineering (wear resistance, insulating properties)
- Avionic & Aerospace Technology (insulating properties, high-temperature stability)
- Forming Technology (wear resistance, hardness, surface properties)
- Automotive Technology (corrosion protection, insulating properties, wear resistance)
- Microtechnology (insulating properties, corrosion protection, wear resistance)
- Testing Methods (insulating properties, wear resistance)
Characteristics |
Unit |
95 Al2O3 |
99 Al2O3 |
ZrO2 |
GPSi3N4 |
BN |
Glass Ceramic |
Crystal Structure |
- |
hexagonal |
hexagonal |
tetragonal |
hexagonal |
hexagonal |
- |
Color |
- |
white |
ivory |
white |
gray |
white |
white |
Density |
g/cm³ |
3.65 |
3.88 |
5.95 |
3.22 |
2.26 |
2.55 |
Water Absorption |
% |
0 |
0 |
0 |
0 |
0.0-1.0 |
0 |
Young's Modulus |
Gpa |
280 |
350 |
205 |
295 |
670 |
65 |
Vickers Hardness |
Gpa |
14 |
20 |
12 |
18-20 |
- |
- |
Flexural Strength |
Mpa |
280 |
300 |
900 |
650 |
51 |
100 |
Compressive Strength |
Mpa |
2000 |
2500 |
2200 |
2200 |
230 |
500 |
Thermal Conductivity |
W/(m•K) |
18-25 |
30 |
2.2 |
25 |
20 |
1.70 |
Thermal shock resistance |
ΔT(C°) |
220 |
180-200 |
280-350 |
450-650 |
>1500 |
25-100 |
Max. Working Temperature |
C° |
1500 |
1700 |
850 |
1200 |
960 |
800 |
Volume Resistivity |
Ω . cm |
>10^15 |
>10^14 |
>10^12 |
>10^14 |
10^13 |
10^16 |
Dielectric Constant |
- |
9.50 |
9.80 |
26 |
8.20 |
4.08 |
6.02 |
Dielectric Strength |
kV/mm |
16 |
22 |
- |
16 |
375 |
40 |
UNIPRETEC is in providing solutions to difficult problems using the most high-tech advanced ceramics precision components and products. We develop, manufacture and supply precision products which required hard wearing, lightweight, non-contaminating, with excellent chemical resistance, good thermal shock and offer enhanced electrical and thermal insulation properties.
With many years of experience in research and development in advanced technical ceramic materials, process development, manufacturing of precision components and small assemblies for the various niche applications for the automotive, aerospace, oil & gas industries, foundries, industrials, food, medical, chemical etc. and also consulting & working with most advanced ceramics manufacturing companies around the world, we are now able to offer following services:
- Design, research & development of materials
- Material processes and manufacturing of precision components & assemblies
- Manufacturer & supplier of quality precision components made from advance technical ceramics with reasonable price and excellent delivery
- Consultation for product development, manufacturing & quality control
- Business development
- Sales & Marketing.
Advance engineering ceramic materials:
- Aluminium Oxide (Al2O3)
- Zirconium Oxide (ZrO2)
- Silicon Carbide (SiC, SiSiC)
- High pressured & Hot pressed sintered Silicon Nitride (GPSN & HPSN)
- Boron Carbide (B4C)
- Aluminium Nitride (AlN)
- Machinable Ceramics (Glass Ceramic & Boron Nitride)
We welcome any opportunity related to above products from any one who are interested in for development or sourcing high tech ceramic components from us. If you need any further information, please do not hesitate to contact us at our office or if you may need my visit for further detail discussion, please do not hesitate to contact me either.