DAMAGE IN LASER MATERIALS

ISBN: 9780266861560 Géneros: PH Sinópsis: Excerpt from Damage in Laser Materials Proceedings of a Symposium Sponsored by the American Society for Testing and Materials and by the National Bureau of Standards June 2425 1970 Nbs Boulder ColoradoTwo speakers reported theoretical analyses of the stress induced in an otherwise homogeneous medium by the presence of an absorbing inclusion under intense illumination Although there were points of disagreement between the two analyses certain conclusions were obtained from both The most damaging particles range in size from to cm and it is precisely in this range that the non destructive detection of particulate inclusions is most difficult Larger particles do not get heated to a temperature sufficiently high to cause damaging stress concentrations while smaller particles do not intercept enough of the incident energy to cause damage Increasing the thermal conductivity of the medium increases the damage threshold as might be expected It is significant that detailed modeling of this most fundamental damage process has only been carried out recently although the role of particulate inclusions in the damage process has been known for many years The models though approximate show trends and parametric dependence Which are useful to guide experi mental research and device developmentAbout the PublisherForgotten Books publishes hundreds of thousands of rare and classic books Find more at wwwforgottenbookscomThis book is a reproduction of an important historical work Forgotten Books uses stateoftheart technology to digitally reconstruct the work preserving the original format whilst repairing imperfections present in the aged copy In rare cases an imperfection in the original such as a blemish or missing page may be replicated in our edition We do however repair the vast majority of imperfections successfully any imperfections that remain are intentionally left to preserve the state of such historical works