Black Alumina Ceramics, Like Traditional Alumina Ceramics, Possess Outstanding Properties Such As Excellent Insulation Performance, Small Expansion Coefficient, High Thermal Conductivity, High Mechanical Strength, Good Light-Blocking Property, Wear Resistance, And Low Dielectric Loss. Due To Their High Photosensitivity And Strong Light-Blocking Property, They Are Widely Used In The Fields Of Semiconductor Integrated Circuits And Electronic Product Packaging

Advantage

-Non-Reflective
-Easy To Recognize
-Good Heat Absorption Effect
-It Has Strong Light-Blocking Performance And Improves Electrical Insulation
-Better Thermal Conductivity And Enhanced Mechanical Strength
-Higher Chemical Durability And Excellent Dimensional Stability

Black alumina ceramics, like traditional alumina ceramics, have excellent properties such as good insulation, small expansion coefficient, high thermal conductivity, high mechanical strength, good shading, abrasion resistance, low dielectric loss, etc., and are widely used in semiconductor integrated circuits and electronic product packaging fields due to their high light sensitivity and strong shading.
Advantage
-High thermal conductivity, good heat absorption, not easy to stick
-High light absorption (>85% visible light absorption)
-Low infrared transmittance, the black surface inhibits infrared transmittance and enhances the efficiency of high—temperature radiation heat dissipation (infrared transmittance 0.7-0.9) Enhancement of radiation heat dissipation: the black surface accelerates the dissipation of heat through a high infrared transmittance to optimize thermal management in high-temperature environments
-High insulating
-Electromagnetic shielding capability

Application Field
Electronic heat dissipation: black high thermal conductivity substrate (LED, power module package), both heat dissipation and electromagnetic shielding.
Laser technology: laser absorbers, photothermal converters (utilizing high light absorption and high temperature resistance).
High-temperature devices: high-temperature sensor housings under vacuum/inert atmosphere, furnace chamber components (black color enhances radiation heat dissipation).
Microwave Engineering: Microwave absorbing materials (black AlN doped with carbon suppresses electromagnetic reflection).
Functional coatings: wear-resistant coatings (black color reduces light reflection interference, e.g., inside walls of optical instruments).

Anti-static zirconia/alumina has resolved the limitations of traditional zirconia in static-sensitive scenarios through conductive modification technology, and has become an ideal material for precision electronics, medical and explosion-proof fields. Its core value lies in the dual characteristics of “high strength + anti-static”. Despite the challenges of high cost and complex processes, it is expected to further expand its application boundaries through material innovation in the future, driven by the demand of high-end industrial and technological fields.

Advantage：
Anti-static: no electrostatic breakdown of the product
Controllable surface resistivity: through doping or coating technology, the surface resistivity can be reduced to 10⁶-10⁹ Ω, to meet the ESD protection standards (such as IEC 61340-5-1), effectively eliminating the risk of electrostatic buildup.
Fast electrostatic dissipation: electrostatic decay time <0.1-2 seconds (ordinary materials >60 seconds), to avoid electrostatic discharge (ESD) damage to sensitive components.
Multi-functional conductive modification: support a variety of modification methods (such as carbon nanotube doping, metal coating, ion implantation), to adapt to the needs of different scenarios

Application Field
Electronics and Semiconductor Manufacturing
ESD protection components: wafer handling robotic arms, vacuum suction cups, probe cards (to prevent static damage to chips)
Precision fixtures: anti-static ceramic tweezers, carriers (to avoid adsorption of dust or triggering of discharges)
Anti-static suction nozzles
Medical and Bioengineering
Surgical tools: anti-static ceramic scalpels, endoscopic components (to reduce static adhesion to biological tissues)
Implantable devices: artificial joints with anti-static surface treatment (to reduce the risk of inflammation caused by friction static) （Implantable devices: artificial joints with antistatic surfaces (to reduce the risk of inflammation caused by friction static)
Industrial explosion protection and safety
Explosion-proof tools: wrenches, scrapers for use in flammable and explosive environments (to avoid static sparks)
Powder handling equipment: antistatic grinding tanks, conveying piping (to prevent static powder explosions)
Optics and precision instruments
Optical mounts: antistatic ceramic mirror holders (to reduce dust adsorption and to improve imaging quality)
Vacuum chambers: linings for semiconductor coating equipment (both corrosion-resistant and antistatic) Vacuum chambers: lining for semiconductor coating equipment (both corrosion-resistant and anti-static)

High finish alumina is an alumina ceramic material prepared by precision machining or special sintering process with extremely low surface roughness (Ra < 0.1 μm), while retaining alumina’s high hardness, corrosion resistance and insulating properties, and is widely used in precision machinery, optics, semiconductors, and biomedical fields.

Advantage
Enhance the surface finish of aluminum oxide, reduce product friction, increase product life and reduce noiseHigh finish aluminum oxide:Ra 0.01-0.1 μm(mirror grade up to Ra<0.01 μm)
Ultra-low coefficient of friction:Coefficient of friction of the polished surface:0.1, suitable for precision bearings, seals
High light reflectance:Visible light reflectance of the surface of the mirror grade is>85%, used for laser mirrors, Optical windows: anti-pollution: smooth surface to reduce dust, liquid adhesion, easy to clean (such as semiconductor crystal garden fixture) Performance
comprehensive: in extreme environments still maintain high strength and corrosion resistance.

Application Field
Semiconductor & Electronics Industry
Wafer Handling: High finish robotic arms, vacuum chucks (to avoid scratching the wafer surface).
Etching equipment: plasma reaction chamber liners (corrosion resistant and easy to clean).
Optics and laser technology
Reflector substrates: laser resonant cavity mirrors, astronomical telescope mirrors (low scattering loss).
Optical windows: infrared windows, light-transmitting ceramics (need to be coated with a transmittance-enhancing film).
Precision machinery
Bearings and guides: ceramic bearings for high-speed spindles (low friction, long life).
Seal rings: Mechanical seals for chemical pumps (corrosion-resistant, particle wear-resistant).
Biomedical
Artificial Joints: polished aluminum oxide acetabulum (reduces tissue friction damage).
Surgical Instruments: Ceramic components for endoscopes (easy to sterilize, resistant to biological contamination).

Ultra-high density zirconia is a zirconia ceramic prepared by advanced sintering processes (e.g., hot isostatic pressing, nano-powder technology) with a density close to the theoretical limit (≥99.5% of the theoretical density), which retains the high toughness and biocompatibility of zirconia and significantly improves the strength, abrasion resistance, and environmental stability of zirconia, making it the preferred ceramic material for extreme working conditions.
Advantage
High strength, high wear resistance, zero defects
High density: Due to the high densification of the material, its density is usually above 6.0 g/cm³, close to the theoretical density of zirconium oxide.
High temperature stability: Zirconia itself has a high melting point (approx. 2700°C) and therefore maintains its stability and structural integrity at high temperatures.
Excellent mechanical properties: HDZ has a high compressive strength and hardness, which allows it to withstand high mechanical stresses in industrial applications.
Corrosion resistance: Ultra-high density zirconia has good resistance to many acids, alkalis and other corrosive chemicals.
High Fracture Toughness: These zirconia materials typically have high fracture toughness, which prevents the material from brittle fracture under stress.

Application Field
Biomedical
Artificial joints: acetabular heads, dental implants (high density reduces the release of wear particles and extends service life).
Surgical tools: ultra-high strength ceramic scalpels, orthopedic drills (corrosion-resistant and easy to sterilize).
Precision Machinery
Bearings and Balls: Aero-engine spindle bearings (high temperature and fatigue resistant).
Cutting tools: Highly dense zirconia coated blades (for machining high hardness alloys).
Energy & Chemicals
Fuel Cell Spacers: dense structure to block gas permeation and improve cell efficiency.
Nuclear reactor components: radiation and high temperature resistant sealing rings and sensor housings.
Optics & Electronics
Fiber optic connectors: high precision ceramic inserts (low thermal expansion, high dimensional stability).
Semiconductor fixtures: wafer transfer robotic arms (anti-static optional, surface finish Ra <0.1 μm).

Advantage
Bore 0.1±0.002,Bore roughness Ra0.2