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Ceramic Alumina 96% vs. Concrete

Compare Ceramic Alumina 96% vs. Concrete strength, stiffness, weight and thermal properties.

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Ceramic Alumina 96%Sintered ceramic (pressed and fired)
ConcreteCast
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Mechanical
Yield strengthnot given (tensile used)not sourced
Ultimate tensile strength221MPasourcetypical tensile strength, 25 °C (ACMA Test #4)not sourced
Compressive strength2,068MPasourcetypical, 20 °C (ASTM-C773)27.6MPasourcespecified compressive strength class (f'c), not a measured typical
Flexural strength358MPasourceflexural strength (MOR), 20 °C (ASTM-F417)not sourced
Elongation at breaknot sourcednot sourced
Young's modulus (stiffness)303GPasourcetypical, 20 °C (ASTM-C848)not sourced
Density3,720kg/m³sourcetypical (ASTM-C20)2,240–2,400kg/m³sourcerange for normalweight concrete
Strength to weight59.4kN·m/kgnot sourced
Stiffness to weight81.5MN·m/kgnot sourced
Poisson's ratio0.21sourcetypical, 20 °C (ASTM-C848)0.15–0.2sourcegeneral range at normal ambient conditions (overall 0.11-0.32)
Shear modulus125GPanot sourced
Bulk modulus174GPanot sourced
Speed of sound9,025m/snot sourced
Thermal
Thermal conductivity24.7W/m·Ksourcetypical, 20 °C (ASTM-C408)0.9W/m·Ksourcetypical (comparative value)
Thermal expansion8.2µm/m·Ksourcemean, 25-1000 °C (ASTM-C372)8–12µm/m·Ksourcetypical range for portland cement concrete (aggregate dependent)
100 mm part over a 50 °C swing41µm growth22% less50µm growth
Specific heat880J/kg·Ksourcetypical, 100 °C (ASTM-E1269)900J/kg·Ksourcetypical (NIST guidance for thermal analysis)
Heats up and cools (diffusivity)7.55mm²/s17.5x faster0.431mm²/s
Thermal shock resistance1,736W/mnot sourced
Max service temperaturenot sourced65°Csourcecode long-term temperature limit (ASME Code, concrete containments)
Values forCoorsTek AD-96, nominal 96% Al2O3 sintered alumina, typical values; CoorsTek "Ceramic Seal Material Properties" (© 2018, 01899 F). AD-96 is the general 96% grade, not the ADS-96R substrate grade.Normal-weight portland cement concrete, strength class f'c = 4000 psi (28 MPa) per NRMCA CIP 35; density NRMCA CIP 36; thermal conductivity USDA FPL Wood Handbook; service temperature ORNL/NRC review

Every value links to the document that states it. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.

Questions

Which is lighter, Ceramic Alumina 96% or Concrete?

Concrete is lighter: 2,320 kg/m³ against 3,720 kg/m³ for Ceramic Alumina 96%.

Which conducts heat better, Ceramic Alumina 96% or Concrete?

Ceramic Alumina 96% conducts heat better: 24.7 W/m·K against 0.9 W/m·K for Concrete.

Which expands less with temperature?

Ceramic Alumina 96% expands less: 8.2 µm/m·K against 10 µm/m·K for Concrete.

Among 72 materials

1k10k0.1110100Density (kg/m³)Young's modulus (GPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless Steel 303Stainless Steel 17-4PHAluminum 2024-T351Aluminum 5052-H32Aluminum 7050-T7451Titanium Ti-6Al-4VBrass C260Nickel Inconel 718Magnesium AZ31B-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelPCB Laminate FR-4SiliconCeramic Aluminum NitrideAluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Ceramic Alumina 96%
Stiffness against density
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonRubberAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless Steel 303Stainless Steel 17-4PHAluminum 2024-T351Aluminum 5052-H32Aluminum 7050-T7451Titanium Ti-6Al-4VBrass C260Nickel Inconel 718Magnesium AZ31B-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic PTFEPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLA Resin Elastic 50ASLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelBrickPCB Laminate FR-4SiliconAluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Ceramic Alumina 96%
Strength against density

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