Notes:

• Measurement uncertainties at 95% confidence level are included in the downloadable MS. Excel file above
• Detailed uncertainty analysis and error propagation methodology used to develop those measurement uncertainties is described in the Uncertainty Analysis page

More information

Information about each thermal property can be found below.

Thermal diffusivity (mm²/s)

• Each data point shown in the plot is an average of (minimum of) three (3) measurements
• Instrument: NETZSCH LFA 467 HT HyperFlash^®
• Purge gas: Argon
• Protective gas: Argon
• Sample thickness: 0.97 – 1.02 mm
• Sample diameter: 10 mm

Specific Heat Capacity (J/g-K)

• Each data point shown in the plot is an average of (minimum of) three (3) measurements
• Instrument: NETZSCH STA 449 F3 Jupiter^®
• Purge gas: Argon
• Protective gas: Argon
• Sample mass: 14 – 19 mg

Thermal Conductivity (W/m-K)

• Thermal conductivity, thermal diffusivity, specific heat and density are related through, k=\alpha { c }_{ p }\rho. Therefore, best estimation of the thermal conductivity is calculated based on that relation.
• Average density of PBN is assumed to be constant at 1.975 g/cm³ ¹

References:

1. PBN – Pyrolitic Boron Nitride: Data Sheet. [Online]. Available: https://www.morgantechnicalceramics.com/media/2315/pbn-datasheet.pdf.