常见非金属、金属表面不同波段的辐射率

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1、第1章非金属的发射率表（n.r.=不推荐）以下值为近似值，根据材料的实际表面和条件不同可能会有所变化。材料发射率1.0µm5.0µm7.9µm8-14µm石棉0.90.90.950.95沥青n.r.0.90.950.95黑陶瓷n.r.0.70.70.7碳未氧化0.8-0.950.8-0.90.8-0.90.8-0.9石墨0.8-0.90.7-0.90.7-0.80.7-0.8碳化硅n.r.0.90.90.9陶瓷0.40.85-0.950.950.95黏土n.r.0.85-0.950.950.95混凝土0.650.90.950.95布料n.r.0.950.950.95玻璃平板n

2、.r.0.980.850.85玻璃坯n.r.0.9n.r.n.r.沙砾n.r.0.950.950.95石膏n.r.0.4-0.970.8-0.950.8-0.95冰n.r.0.980.98石灰岩n.r.0.4-0.980.980.98涂料(非铝)0.9-0.950.9-0.95纸张(任何颜色)n.r.0.950.950.95塑料不透明n.r.0.950.950.95大于20密耳n.r.橡胶n.r.0.90.950.95沙子n.r.0.90.90.9雪n.r.0.90.9泥土n.r.0.9-0.980.9-0.98水n.r.0.930.93木头，（天然）n.r.0.9-0.95

3、0.9-0.950.9-0.95第2章金属的发射率表以下值为近似值，根据材料的实际表面和条件不同可能会有所变化。材料发射率1.0µm1.6µm8-14µm铝未氧化0.1-0.20.02-0.2n.r.氧化0.40.40.2-0.4铝合金A3003氧化n.r.0.40.3毛面0.2-0.80.2-0.60.1-0.3光面0.1-0.20.02-0.1n.r.黄铜光面0.8-0.950.01-0.05n.r.砑光面n.r.n.r.0.3氧化0.60.60.5铬0.40.4n.r.铜光面n.r.0.03n.r.毛面n.r.0.05-0.2n.r.氧化0.2-0.80.2-0.90.

4、4-0.8电气接线端子n.r.n.r.0.6金0.30.01-0.1n.r.Haynes合金0.5-0.90.6-0.90.3-0.8铬镍铁合金氧化0.4-0.90.6-0.90.7-.95喷砂0.3-0.40.3-0.60.3-0.6电抛光面0.2-0.50.250.15铁氧化0.4-0.80.5-0.90.5-0.9未氧化0.350.1-0.3n.r.铁锈n.r.0.6-0.90.5-0.7熔融0.350.4-0.6n.r.铁，铸铁氧化0.7-0.90.7-0.90.6-0.95未氧化0.350.30.2熔融.0350.3-0.40.2-0.3铁，锻造钝铁0.90.90.

5、9铅光面0.350.05-0.2n.r.毛面0.650.60.4氧化n.r.0.3-0.70.2-0.6镁0.3-0.80.05-0.3n.r.汞n.r.0.05-0.15n.r.钼氧化0.5-0.90.4-0.90.2-0.6未氧化0.25-0.350.1-0.35镍氧化0.8-0.90.4-0.70.2-0.5电解0.2-0.040.1-0.3n.r.铂黑n.r.0.950.9银n.r.0.02.n.r钢冷轧0.8-0.90.8-0.90.7-0.9地垫n.r.n.r.0.4-0.6光泽钢片0.350.250.1熔融0.350.25-0.4n.r.氧化0.8-0.90.8

6、-0.90.7-0.9不锈钢0.350.2-0.90.1-0.8锡(未氧化)0.250.1-0.3n.r.钛光面0.5-0.750.3-0.5n.r.氧化n.r.0.6-0.80.5-0.6钨n.r.0.1-0.6n.r.光面0.35-0.40.1-0.3n.r.锌氧化0.60.150.1光面0.50.05n.r.