One aspect of a recent study was a search for a material approximating the following combination of qualities: i. A strongly "colored" reflectivity, specular or diffuse, in the near IR conforming closely to the schedule: >5/x, 1. 0 reflectivity; 4M, 0. 9; 3n, 0. 8; 2. 5M, 0. 7; 2/x, 0. 45; 1. 5M, 0. 3; 1/n, 0.2; <0. 8M, <0.1. ii. Minimum absorption at all wavelengths. iii. Minimum weight per un...

The effect of CO2 laser drilling on glass microballoon/epoxy syntactic foams are investigated in this study to optimize machining parameters achieve a clean hole for various industrial applications. epoxy matrix is reinforced with microballoons concentrations 0, 20 and 40 vol%. Cutting speed, power additive percentage input optimization. Kerf taper angle, surface roughness ovality used as outpu...