CERAMICS
EPI Carries Boron Nitride, Zirconia, Silicon Nitride, Silicon Carbide, Aluminium Oxide, Which Are Also Available in Various Dimensions
EPI Materials is a global provider of exceptional customer service and high-quality advanced ceramic materials, with a goal of enabling the innovation, creation, and advancement of a vast array of products.
We help our customers compete and succeed on the leading edge of technology. Built on a tradition of customer service and quality. EPI Materials aim to become a world-class supplier of ceramic materials.
Advanced ceramics, also known as engineered ceramics, are differentiated from traditional ceramics by their higher strength, higher operating temperatures, improved toughness, and tailorable properties. These materials are replacing metals in applications where reduced density and higher melting points can increase efficiency and speed of operation.
In Addition to the supply of wrought materials EPI also provides items manufactured to customers’ specifications and drawings.
Boron Nitride
Hot-pressed boron nitride (H-BN) is compacted at temperatures up to 2000˚ C and pressures up to 2000 psi to form a dense, strong engineering material that may be easily machined.
Boron Nitride is used as critical components in applications where excellent thermal shock resistance, high electrical resistivity and chemical and corrosion resistance is required. Hot-pressed boron nitride ceramics have excellent chemical stability which is nonreactive with halide salts and reagents.
Pyrolytic boron nitride (PBN) is a high-purity ceramic (up to 99.99%) with excellent chemical resistance and strength at high temperatures. PBN is made by Chemical Vapor Deposition (CVD) process, its intrinsic purity, superior mechanical strength, and thermal stability make it a superb choice for high-temperature furnace and electrical components; microwave and semiconductor components; and industry standardized crucibles for gallium arsenide crystal (GAN) production.
> Boron Nitride Powder (BN Powder)
> Boron Nitride Sheet (BN Sheet)
> Boron Nitride Tube (BN Tube)
> Boron Nitride Rod (BN Rod)
> Boron Nitride Crucible (BN Crucible)
> Boron Nitride Custom Parts (BN Custom Parts)
> Pyrolytic Boron Nitride (PBN) Tubes
> Pyrolytic Boron Nitride (PBN) Crucibles
> Pyrolytic Pyrolytic Boron Nitride (PBN) Sheet
> Pyrolytic Boron Nitride (PBN) Custom Parts
Zirconia
Zirconia is obtained through a reductive clorination. At the end of this process, one can obtain zirconium oxide powder (which is a ceramic and no longer a metal).
Unlike other ceramic materials, zirconium oxide (ZrO2 –also known as zirconia) is a material with very high resistance to crack propagation. Zirconium oxide ceramics also have very high thermal expansion and are therefore often the material of choice for joining ceramic and steel.
To improve the properties of Zirconia (ZrO2), other elements are added to the compound to stabilize the molecular structure: ex. Yttrium (Y). Through a mixture and sintering process, the final ceramic structure is stabilized. The Y-TZP is the Yttrium stabilized Tetragonal Zirconium Policrystal.
Zirconium oxide ceramics are used, among other applications, as tools for wire forming, as auxiliaries in welding processes, as materials for crowns and bridges in the dental industry, as insulating rings in thermal processes, and as oxygen measurement cells in lambda probes.
Stabalized zirconia ceramic products. Mortars and pestles, tubes, rods, plates, valve components and more.
> Zirconia Crucible (ZrO2 Crucible)
> Zirconia Rod/Tube (ZrO2 Rod/Tube)
> Zirconia Mortar and Pestle Set (ZrO2 Grinding Mortar and Pestle Set)
> Yttria Stabilized Zirconia Grinding Media (YSZ Grinding Media)
> Yttria Stabilized Zirconia Jar with Lid (YSZ Grinding Jar with Lid)
> Yttria Stabilized Zirconia Powder (YSZ Powder)
> Cerium Stabilized Zirconia
> Scandium Stabilized Zirconia
Silicon Carbide
Silicon carbide is formed in two ways, reaction bonding and sintering. Each forming method greatly affects the end of the microstructure. Reaction bonded SiC is made by infiltrating compacts made of mixtures of SiC and carbon with liquid silicon. The silicon reacts with the carbon forming more SiC which bonds the initial SiC particles. Sintered SiC is produced from pure SiC powder with non-oxide sintering aids. Conventional ceramic forming processes are used and the material is sintered in an inert atmosphere at temperatures up to 2000ºC or higher.
> Silicon Carbide Plate (SiC Plate)
> Silicon Carbide Tube (SiC Tube)
> Silicon Carbide Nozzle (SiC Nozzle)
> Silicon Carbide Ball (SiC Ball)
> Silicon Carbide Grinding Media (SiC Grinding Media)
Silicon Nitride
Silicon Nitride has the most versatile combination of mechanical, thermal, and electrical properties of any technical ceramic material. It is a high-performance technical ceramic that is extremely hard and has exceptional thermal shock and impact resistance. It surpasses most metals’ high-temperature capabilities and has a superior combination of creep and oxidation resistance. Additionally, its low thermal conductivity and high wear resistance make it an excellent material that can withstand the toughest of conditions in the most demanding industrial applications. Silicon Nitride is an excellent choice when high-temperature and high-load abilities are needed.
> Silicon Nitride Rods & Bars (Si3N4 Rods & Bars)
> Silicon Nitride Sheets & Blocks (Si3N4 Sheets & Blocks)
> Silicon Nitride Tubes & Pipes (Si3N4 Tubes & Pipes)
> Custom Silicon Nitride Parts
Alumina
Alumina (Al2O3) is one of the most widely specified, general-purpose technical ceramics. All aluminas are very hard and wear-resistant, with high compressive strength even against extreme temperatures and corrosive environments, which make alumina widely used in mechanical parts. Aluminas are also excellent electrical insulators that have been used for decades in electrical components.
> Aluminum Oxide Powder (Al2O3 Powder)
> Alumina (Al2O3) Plate
> Alumina (Al2O3) Tube
> Alumina (Al2O3) Rod
Lanthanum Hexaboride
Lanthanum Hexaboride (LaB6, also called lanthanum boride and LaB6) is an inorganic chemical. With melting point 2528 K, LaB6 is a refractory ceramic material, which is insoluble in water or hydrochloric acid and very stable in vacuum. Stoichiometric samples are colored intense purple-violet, while boron-rich ones (above LaB6.07) are blue. Ion bombardment changes its color from purple to emerald green. LaB6 is a superconductor with a relatively low transition temperature of 0.45 K.
> Lanthanum Hexaboride (LaB6) Powder
> Lanthanum Hexaboride (LaB6) Cathode
> Lanthanum Hexaboride (LaB6) Tube
> Lanthanum Hexaboride (LaB6) Disc
> Lanthanum Hexaboride (LaB6) Sheet/Plate
> Lanthanum Hexaboride (LaB6) Rod