| 摘要 |
Provided is a heat conductivity measuring method having improved measurement accuracy. In this heat conductivity measurement method, a body to be tested (10) is disposed between a heating plate (100) and a cooling plate (200), and a heat conductivity (?t) of the body to be tested (10), said heat conductivity being in the thickness direction (Ft) from the heating plate (100) toward the cooling plate (200), is measured. The method includes: a step of determining variable numbers that include measurement conditions of changing a heat flow rate in the width direction (Fw) from the center (13) toward the outer circumferential end (14) of the body to be tested (10); and a step of obtaining a correlative relationship between the variable numbers and an apparent heat conductivity (?a), which is measured on the basis of a rate of a heat flow from the heating plate (100), thickness of the body to be tested (10), temperature gradient in the thickness direction (Ft), and heat transfer area of the body to be tested (10), said heat transfer area being in the thickness direction (Ft). |
