Pyroceram 9606, A Certified Ceramic Reference Material For High-Temperature Thermal Transport Properties: Part 2—Certification Measurements

Abstract

Following the characterization of the batch of Pyroceram 9606 material, a number of the partners in the European Commission (EC) supported program carried out certification measurements of thermal conductivity and thermal diffusivity. Six laboratories undertook thermal-diffusivity measurements using either the flash or the modulated beam methods. Eight laboratories measured the thermal conductivity, using either the steady-state guarded-hot-plate method or one of the transient hot-wire methods. Results from each series of measurements were provided in a standard format as an aid to simplify the statistical analysis of the data. The results were corrected to the nominal measured temperature and for change in dimension, analyzed separately, and presented in a standard format. Outliers were identified and rejected where appropriate, based on both statistical and technical evidences. The individual data sets were combined, and the grand mean data for each property analyzed further to provide the certified values together with their uncertainty limits. Finally, using the specific heat capacity and density values obtained from the characterization tests, values of thermal conductivity were calculated from the measured thermal diffusivity. The difference between the calculated and certified values is less than 2.7 %, which is well within the uncertainty limit assigned for the certified thermal property values.

Application of phase change materials to improve the thermal performance of cementitious material

“…where λ PC is the thermal conductivity of the Pyroceram (W/m·K) and T is the temperature 2 (°C). More information about Pyroceram 9606 can be found in [39]. passing through a sample due to a temperature gradient.…”

Issue report summarizing non-destructive characterization and performance of SiC/SiC tubes

“…A Pyroceram 9606 standard reference material [5] was used to verify the thermal diffusivity calculation of the front surface method. The thermal diffusivity of this material has been previously determined to be 1.96 mm 2 /s.…”

Thermophysical Properties of Lithium Alloys for Thermal Batteries

“…For all sample measurements, a Pyroceram 9606 standard pellet was measured in parallel during the run, with the data collection taking place for the standard at every temperature prior to the sample at that temperature. The measurements of the Pyroceram 9606, a well-characterized material [10], were used to determine the specific heat at each temperature for the alloy pellets via the ratio method of Eq. 1.…”

“…As with Figs. 1 and 2, the data here are averaged for the five samples tested; Table 2 Comparison of thermal conductivity (in W · m −1 · K −1 ) for Pyroceram 9606 from the literature [10] with the values obtained in parallel with Li-Si and Li-Al data collection All thermal-conductivity values are averages of five runs on the same pellet a Data collected in parallel with Li-Si measurements b Data collected in parallel with Li-Al measurements Table 1 shows the averaged data used to generate Fig. 3.…”