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Ceramic Aluminum Nitride vs. Wood

Compare Ceramic Aluminum Nitride vs. Wood strength, stiffness, weight and thermal properties.

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Ceramic Aluminum NitrideSintered ceramic (pressed and fired)
WoodNatural
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Mechanical
Yield strengthnot sourcednot given (tensile used)
Ultimate tensile strengthnot sourced99MPasourcemodulus of rupture (no direct tensile value)
Compressive strengthnot sourced46.6MPasourcecompression parallel to grain (maximum crushing strength), 12% MC
Flexural strength310MPasource3-point bending strength (JIS R 1601)99MPasourcemodulus of rupture (static bending), 12% MC
Elongation at breaknot sourcednot sourced
Young's modulus (stiffness)320GPasourcetypical (JIS R 1602)12.5GPasourcebending MOE, parallel to grain
Density3,400kg/m³sourcetypical (JIS R 1634)not sourced
Strength to weightnot sourcednot sourced
Stiffness to weight94.1MN·m/kgnot sourced
Poisson's ratio0.24sourcetypical (JIS R 1602)0.35sourcemu_LR (red oak group, ~12% MC)
Shear modulus129GPa27.9x stiffer in shear4.63GPa
Bulk modulus205GPa13.9GPa
Speed of sound9,701m/snot sourced
Thermal
Thermal conductivity150W/m·Ksourcetypical (JIS R 1611)0.18W/m·Ksourceacross grain, 12% MC (Table 4-7, approximate)
Thermal expansion4.6µm/m·Ksourcemean, 40-400 °C (JIS R 1618)3.1–4.5µm/m·Ksourceparallel to grain, ovendry wood, range across species
100 mm part over a 50 °C swing23µm growth19µm growth21% less
Specific heat710J/kg·Ksourcetypical (JIS R 1611)1,700J/kg·Ksourcesolid wood (all species), 12% MC, 27 C
Heats up and cools (diffusivity)62.1mm²/snot sourced
Thermal shock resistancenot sourced244W/m
Values forKYOCERA AN216A dense sintered aluminium nitride, typical values; KYOCERA Fineceramics Europe data sheet 2023.04.03Northern red oak (Quercus rubra), clear straight-grained specimens at 12% MC, parallel to grain unless stated; USDA FPL Wood Handbook FPL-GTR-282 (2021) Ch. 4 and Ch. 5

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 stiffer, Ceramic Aluminum Nitride or Wood?

Ceramic Aluminum Nitride is stiffer: Young's modulus 320 GPa against 12.5 GPa for Wood, so the same part in Ceramic Aluminum Nitride deflects less under the same load.

Which conducts heat better, Ceramic Aluminum Nitride or Wood?

Ceramic Aluminum Nitride conducts heat better: 150 W/m·K against 0.18 W/m·K for Wood.

Which expands less with temperature?

Wood expands less: 3.8 µm/m·K against 4.6 µm/m·K for Ceramic Aluminum Nitride.

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 Alumina 96%Aluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Ceramic Aluminum Nitride
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-4SiliconCeramic Alumina 96%Aluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30
Strength against density

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