Oxide Ceramics2026-03-25T03:30:15+00:00

Oxide Ceramics

  • 1

    Alumina (Al₂O₃)

    Alumina is one of the most widely used oxide ceramics, offering high hardness, excellent wear resistance, electrical insulation, and thermal stability.

  • 2

    Zirconia (ZrO₂)

    Zirconia offers high strength and good mechanical reliability, making it suitable for applications requiring structural stability and wear resistance.

  • 3

    Silica (SiO₂)

    Known for low thermal expansion and excellent thermal shock resistance, silica ceramics are widely used in high-temperature environments.

What Are Oxide Ceramics?

Oxide ceramics are a class of advanced ceramic materials composed of metal oxides such as alumina (Al₂O₃), zirconia (ZrO₂), and silica (SiO₂). These materials are characterized by high melting temperatures, excellent chemical stability, and diverse electrical properties.

Due to their fully oxidized state, oxide ceramics exhibit outstanding resistance to oxidation and corrosion, making them ideal for high-temperature and chemically aggressive environments.

Product Introduction

Product Introductionn

High Material Compatibility

Alumina (Al₂O₃) Ceramic Slurry

Alumina ceramic slurry is one of the most widely used materials in ceramic 3D printing. It features high solid loading, excellent dispersion stability, and optimized rheological behavior for DLP/SLA processes.
Applications:
Electronic substrates and insulating components.
Industrial wear parts and cutting tools.
High-temperature furnace components.
Biomedical implants and dental restorations.

Saving Printing Materials

Zirconia (ZrO₂) Ceramic Slurry

Zirconia ceramic slurry is known for its exceptional fracture toughness and strength, enabled by transformation toughening mechanisms. It is highly suitable for manufacturing parts that require impact resistance and reliability.
Applications:
Dental crowns, bridges, and implants.
Structural ceramic components.
Wear-resistant parts.
Aerospace and high-stress mechanical applications.

Silica  Ceramic Slurry

Silica (SiO₂) Ceramic Slurry

Silica ceramic slurry is characterized by low thermal expansion and excellent thermal shock resistance. It is particularly suitable for applications requiring dimensional stability under rapid temperature changes.
Applications:
Investment casting molds and cores.
Thermal insulation components.
Aerospace lightweight structures.
Optical and precision components.

Printing Case

Industrial Applications

Ceramic 3D printing technology can be utilized to fabricate high-precision molds and components; serving as a complement to traditional techniques, it helps reduce waste in conventional manufacturing processes and shortens product development cycles.

University Research

The application of ceramic 3D printing in the field of scientific research is continuously expanding. In university research settings, it enables the rapid validation of materials and structures, thereby facilitating scientific inquiry. To date, ADT Technology has partnered with over 100 universities and research institutions both domestically and internationally.

Material parameters

Oxide Ceramics

Alumina (Al₂O₃) Ceramic Slurry

Material NameAlumina (Al2O3)
Material ModelADT-Al2O3-TH01-XADT-Al2O3-TH01-H
Slurry
Solid Content (vol%)5662
Solid Content (wt%)8285
Viscosity (50 s⁻¹) (Pa·s)¹3.215.08
Density (g/cm³)2.692.76
Sintered Ceramics
Sintering Temperature (°C)17501650
Sintered Density (g/cm³)3.823.68
Three-point Bending Strength (MPa)²298386
Hardness (HV)1015661040
Relative Dielectric Constant (12GHz)8.239.10
Dielectric Loss Factor tanδ (*0.001)55.20.52
Compressive Strength (MPa)632880
Material NameZirconia (ZrO2)
Material ModelADT-ZrO2-THP01-FADT-ZrO2-TH01-M
Slurry
Solid Content (vol%)4959
Solid Content (wt%)8487
Viscosity (50 s⁻¹) (Pa·s)¹4.6212.8
Density (g/cm³)3.533.8
Sintered Ceramics
Sintering Temperature (°C)15301570
Sintered Density (g/cm³)5.995.67
Three-point Bending Strength (MPa)²782209
Hardness (HV)101458669
Relative Dielectric Constant (12GHz)-15.71
Dielectric Loss Factor tanδ (*0.001)-32.9
Compressive Strength (MPa)2240882
Oxide Ceramics

Zirconia (ZrO₂) Ceramic Slurry

Oxide Ceramics

Silica (SiO₂) Ceramic Slurry

Material NameSilica (SiO2)
Material ModelADT-SiO2-TH01-C
Slurry
Solid Content (vol%)60
Solid Content (wt%)75
Viscosity (50 s⁻¹) (Pa·s)¹1.5
Density (g/cm³)1.75
Sintered Ceramics
Sintering Temperature (°C)1350
Sintered Density (g/cm³)1.69
Three-point Bending Strength (MPa)²18.67
Hardness (HV)10-
Compressive Strength (MPa)14.4
Material ModelADT-ZTA-TH01-H
Powder
Purity (%)≥ 99
Slurry
Solid Content (vol%)61
Solid Content (wt%)85
Viscosity (50 s⁻¹) (Pa·s)¹3.85
Slurry Density (g/cm³)2.9
Shelf Life12 Months
Sintered Ceramics
Sintering Temperature (°C)1650
Theoretical Density (g/cm³)4.2
Actual Density (g/cm³)4.12
Relative Density (%)98.1
Porosity (%)1.9
Three-point Bending Strength (MPa)²682
Surface Roughness Ra (μm)²1.09
Hardness (HV10)1250
Compressive Strength (MPa)1466
Max. Working Temperature (°C)1500
Fracture Toughness (MPa·m1/2)5.6

Zirconia-toughened alumina Ceramic Slurry

FAQ: Oxide Ceramics

They are widely used in electronics, aerospace, medical implants, and industrial applications due to their thermal and chemical stability.

Alumina offers higher hardness and wear resistance, while zirconia provides superior toughness and crack resistance.

Solid loading plays a critical role in ceramic 3D printing. Higher solid loading typically results in increased green body density and reduced sintering shrinkage, but it also raises viscosity, which can negatively affect printability and layer recoating. Optimizing the balance between rheology and particle packing is essential for achieving high-density ceramic parts.

DLP ceramic slurries require shear-thinning behavior, low viscosity under shear, and high stability at rest. Proper dispersant selection and particle size distribution are critical to prevent sedimentation and ensure uniform layer curing during printing.

Alumina and zirconia generally exhibit isotropic shrinkage with predictable behavior when processed correctly. Silica, however, has lower densification rates and may show different shrinkage characteristics due to its glassy phase and lower sintering activity.

High-viscosity slurries can lead to poor layer uniformity, incomplete recoating, and defects such as delamination or voids. Advanced feeding systems and optimized exposure parameters are required to maintain print stability.

Silica exhibits superior thermal shock resistance due to its low thermal expansion coefficient. However, it generally has lower mechanical strength compared to alumina and zirconia, making it more suitable for thermal applications rather than structural load-bearing components.

Debinding must be carefully controlled to avoid internal stresses, cracking, or pore formation. Key factors include heating rate, binder composition, part geometry, and green body density. Improper debinding can significantly compromise final part integrity.

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