The emissivity of metals and oxides. I. Nickel Oxide (NiO) in the range 600° to 1300° C
A 1914 technical paper from the National Bureau of Standards reporting measurements of the emissivity of nickel oxide between 600° and 1300° C, written for physicists and engineers working in radiation pyrometry. Line drawings show optical benches, furnace and balance rigs, circuit diagrams with resistors and battery cells, and hatched cross-sections labelled with letters and arrows, usable as schematic apparatus motifs.





