Felicitous
发表于 2025-3-25 04:38:55
The Measurement of Thermal Conductivity by the Comparative Methodr more specimens of known thermal properties exists. In general, when the term comparative method or “comparator” is used, it is understood that it applies to the basic method whereby a specimen is joined directly to, or sandwiched between, one or two reference materials and surrounded by a heated g
allergy
发表于 2025-3-25 09:24:18
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Dawdle
发表于 2025-3-25 11:41:16
B.S. 1902 Panel Test Method for the Measurement of the Thermal Conductivity of Refractory Materialsium or “steady-state” methods involving the direct measurement of the amount of heat flowing linearly through a known area of the material under a known and steady temperature gradient. A water-flow calorimeter is used for the heat-flow measurement, the test piece being a plane parallel slab or pane
hidebound
发表于 2025-3-25 19:54:18
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exacerbate
发表于 2025-3-25 22:35:54
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在驾驶
发表于 2025-3-26 00:34:29
The Apparatus for Thermal Diffusivity Measurement by the Laser Pulse Methodterials in the 100 to 3300 K temperature range and 1 × 10. to 1 × 10. m. s. thermal diffusivity range. The method needs small specimens, 6 to 16 mm in diameter and thickness from a fraction to a few millimeters.
补角
发表于 2025-3-26 06:41:48
Modulated Electron Beam Thermal Diffusivity Equipmentod with a disk-type specimen is the only one considered in this chapter. The apparatus described here allows measurement of the thermal diffusivity of most solid materials over a broad temperature range. High temperatures are intended in particular. Also spectral emissivity values are obtained as a
用树皮
发表于 2025-3-26 11:45:25
Instruments for Measuring Thermal Conductivity, Thermal Diffusivity, and Specific Heat under Monoton to 700 K. Test specimens shaped as disks or short rods 15–20 mm in diameter and 1–40 mm in height are used for measurements performed under monotonic near-linear heating. The instruments are equipped with conventional devices for measuring temperature and heat flow, as well as heating and cooling s
雪崩
发表于 2025-3-26 13:12:23
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conservative
发表于 2025-3-26 18:06:31
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