FabDigit

BeO Ceramic vs MgO Ceramic vs TiO2 Ceramic vs Spinel

Benchmark · 4 materials

Side-by-side benchmark of 4 ceramic grades.

BeO Ceramic vs MgO Ceramic and 2 more: properties

BeO CeramicMgO CeramicTiO2 CeramicSpinel

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

345 GPa50 Msi
300 GPa43.5 Msi
250 GPa36.3 Msi
265 GPa38.4 Msi

Shear Modulus

137 GPa19.9 Msi
128 GPa18.6 Msi
95 GPa13.8 Msi
108 GPa15.7 Msi

Bulk Modulus

240 GPa34.8 Msi
155 GPa22.5 Msi
205 GPa29.7 Msi
193 GPa28 Msi

Poisson's Ratio

0.26
0.18
0.27
0.26

Tensile Strength (Ultimate)

140 MPa20.3 ksi
100 MPa14.5 ksi
80 MPa11.6 ksi
120 MPa17.4 ksi

Compressive Strength

1,550 MPa225 ksi
1,000 MPa145 ksi
750 MPa109 ksi
1,800 MPa261 ksi

Flexural Strength

235 MPa34.1 ksi
170 MPa24.7 ksi
140 MPa20.3 ksi
180 MPa26.1 ksi

Fracture Toughness (K_IC)

3.5 MPa·√m3.2 ksi·√in
1.6 MPa·√m1.5 ksi·√in
2.5 MPa·√m2.3 ksi·√in
1.8 MPa·√m1.6 ksi·√in

Hardness, Vickers

1,200 HV
620 HV
950 HV
1,350 HV

Hardness, Knoop

1,200 HK
590 HK
880 HK
1,300 HK

Hardness, Mohs

9
6
6.2
8

Physical

Density and transition temperatures.

Density

2.87 g/cm³0.1 lb/in³
3.55 g/cm³0.13 lb/in³
4.15 g/cm³0.15 lb/in³
3.55 g/cm³0.13 lb/in³

Melting Point (Solidus)

2,530°C4,586 °F
2,800°C5,072 °F
1,843°C3,349 °F
2,135°C3,875 °F

Refractive Index

1.72
1.736
2.7
1.715

Porosity

0.5%
2%
1%
0.7%

Light Transmission

0%

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

285 W/m·K165 BTU/hr·ft·°F
40 W/m·K23.1 BTU/hr·ft·°F
7 W/m·K4 BTU/hr·ft·°F
15 W/m·K8.7 BTU/hr·ft·°F

Specific Heat Capacity

1,030 J/kg·K0.25 BTU/lb·°F
935 J/kg·K0.22 BTU/lb·°F
690 J/kg·K0.16 BTU/lb·°F
820 J/kg·K0.2 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

7 µm/m·K3.9 µin/in·°F
13.5 µm/m·K7.5 µin/in·°F
8 µm/m·K4.4 µin/in·°F
6 µm/m·K3.3 µin/in·°F

Max Service Temperature (continuous)

1,800°C3,272 °F
1,700°C3,092 °F
1,100°C2,012 °F
1,600°C2,912 °F

Min Service Temperature

-269°C-452 °F
-200°C-328 °F
-200°C-328 °F
-269°C-452 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹³ Ω·m3.94×10²⁰ µΩ·in
1×10¹² Ω·m3.94×10¹⁹ µΩ·in
1×10¹¹ Ω·m3.94×10¹⁸ µΩ·in
1×10¹² Ω·m3.94×10¹⁹ µΩ·in

Dielectric Strength

12 kV/mm305 V/mil
12 kV/mm305 V/mil
10 kV/mm254 V/mil
16 kV/mm406 V/mil

Dielectric Constant (1 MHz)

6.7
9.7
95
8.3

Dissipation Factor (1 MHz)

4×10⁻⁴
4×10⁻⁴
8×10⁻⁴
3×10⁻⁴

Volume Resistivity

1×10¹⁵ Ω·cm
1×10¹⁴ Ω·cm
1×10¹³ Ω·cm
1×10¹⁴ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

85 / 100
35 / 100
90 / 100
92 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

5 / 100
22 / 100
5 / 100
5 / 100

Polishability

70 / 100
65 / 100
80 / 100
88 / 100

Sintering / Firing Temperature

1,650°C3,002 °F
1,700°C3,092 °F
1,400°C2,552 °F
1,650°C3,002 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

300 MJ/kg128,977 BTU/lb
40 MJ/kg17,197 BTU/lb
80 MJ/kg34,394 BTU/lb
75 MJ/kg32,244 BTU/lb

Embodied Carbon (primary production)

22 kg CO₂/kg
3 kg CO₂/kg
6 kg CO₂/kg
6.5 kg CO₂/kg

Embodied Water

400 L/kg47.9 gal/lb
25 L/kg3 gal/lb
200 L/kg24 gal/lb
200 L/kg24 gal/lb

Typical Recycled Content

5%
5%
0%
0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

49 kN·m/kg
28 kN·m/kg
19 kN·m/kg
34 kN·m/kg

Specific Stiffness (E / density)

120.2 MN·m/kg
84.5 MN·m/kg
60.2 MN·m/kg
74.6 MN·m/kg

Thermal Diffusivity

96.4 mm²/s
12.1 mm²/s
2.4 mm²/s
5.2 mm²/s

Thermal Shock Resistance Index

17
1
0
1

Strength versus weight

Yield strength against density for every ceramic grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

501002005001,000234567Density (g/cm³)Yield strength (MPa) — log scale

Manufacturing and finishing

CapabilityBeO CeramicMgO CeramicTiO2 CeramicSpinel
Default condition
Relative cost$$$$ High$$ Standard$$$$ High$$$$ High
Min. machined wall
Best machined surface

Ready to make it?

Upload a CAD file and FabDigit prices the part in BeO Ceramic and MgO Ceramic side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.