Laser flashLFA477

Meng Pei LU

Figure of merit

Heat

Electricitygenerator

refrigerator

Seebeck coefficient

Electrical resistivity Thermal conductivity

LFA + DSC + ArchimedesHall ; four point probe

LFA447

κ=D × Cp × ρd

MethodHeating by laser pulse

Measure temperature versus time by IR detector

Thermal conductivity

T/Tmax = 0.5 = 1.37 * a p2 t 0.5 /L2

Sample preparation攜帶物品1.手套2.鎳子3.碳膠 (噴膠 )4.擦拭紙5.試片6.(方載台 , 螺絲起子 )7.(隨身碟 , 筆記本 , 筆 )

行前準備1.量厚度2.噴雙面碳膠3.確認有液態氮

Let’s get to work !