Laser machining and its thermal effects on silicon nitride and steel

Ray, Aloke K., "Laser machining and its thermal effects on silicon nitride and steel " (1995). Retrospective Theses and Dissertations. This manusciipt has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted Hius, some thesis and dissertation copies are in typewriter face, while others may be from aiQr type of conqputer printer. The qnality of this reprodnction is dependent upon the qnali^ of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard Tnargiiig and in^oper alignment can adverse^ affect rqn-oduction. In the unlikely event that the author did not send UMI a complete manuscript and there are Tnisging pages, tiiese wiU be noted. Also, if unauthorized copyright material had to foe removed, a note win indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand comer and continuing from left to right in equal sections with small overlaps. Eadi original is also photographed in one esqjosure and is included in reduced form at the back of the book. Photographs included in the original manuscript have been reproduced xerographically in this copy. Higher quality 6" x 9" black and white photQgrs^hic prints are available for ai^r photographs or illustrations appealing in this copy for an additional charge. Contact UMI directly to order.