# Pyrolytic Boron Nitride (PBN)

Download data here: PBN.xlsx

**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 (mm^{2}/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/cm
^{3}¹

References:

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