Download or read book Study Program to Develop and Evaluate Die and Container Materials for the Growth of Silicon Ribbons written by L. A. Addington and published by . This book was released on 1979 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study Program to Develop and Evaluate Die and Container Materials for the Growth of Silicon Ribbons Quarterly Report written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study Program to Develop and Evaluate Die and Container Materials for the Growth of Silicon Ribbons written by and published by . This book was released on 1979 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study Program to Develop and Evaluate Die and Container Materials for the Growth of Silicon Ribbons Quarterly Report written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Die and container material development efforts under the current program are shared among three organizations: Miami Research Laboratories (MRL) - ceramic process development and overall program management; University of missouri-Rolla (UMR) - silicon sessile drop studies with characterization of reaction products and emphasis on atmospheric effects; and Chemetal Corporation, Pacoima, California - special coatings to be applied to test coupons, die shapes, and containers provided by MRL and tested/characterized by UMR. The completion of a major hardware delivery milestone was accomplished with the delivery of three CNTD Si3N4 coated hot pressed Si3N4 crucibles to JPL. A limited characterization of the coating was performed at MRL prior to delivery. The coatings were fine grained .cap alpha. - Si3N4. It has been determined that a two piece die design will be required. At UMR the importance of the role of oxygen in influencing the attack of the CNTD materials by molten silicon has been demonstrated. The stability is greatly enhanced by maintaining the oxygen partial pressure near or below the Si + O2 = SiO2 equilibrium.
Download or read book Development and Evaluation of Die Materials for Use in the Growth of Silicon Ribbons by the Inverted Ribbon Growth Process Task II LSSA Project written by M. T. Duffy and published by . This book was released on 1979 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study Program to Develop and Evaluate Die and Container Materials for the Growth of Silicon Ribbons written by Miami Research Laboratories and published by . This book was released on 1978 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study Program to Develop and Evaluate Die and Cntainer Materials for the Growth of Silicon Ribbons Quarterly Report written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Die and container material development efforts under the current program are shared among three organizations. Miami Research Laboratories (MRL)--ceramic process development and overall program management, University of Missouri--Rolla (UMR)--silicon sessile drop studies with characterization of reaction products and emphasis on atmospheric effects, Chemetal Corporation, Pacoima, California--special coatings to be applied to test coupons, die shapes and containers provided by MRL and tested/characterized by UMR. Initial sessile drop experiments on SiC, Si3N4 and AlN have been conducted. Very promising results have been achieved on both SiC and Si3N4 where minimal penetration of these (Controlled Nucleation by Thermochemical Decomposition) CNTD coatings by molten silicon was observed. Efforts continued in the following areas. At MRL, a set of AlN and another set of Si3N4 substrates have been hot pressed. Hot pressing experiments have begun on crucible shapes. Characterization efforts have also begun on coatings and substrates. Chemetal delivered AlN coated substrates and began development efforts to produce Si-O-N coatings as predecessor to Si-O-Al-N coatings. UMR has succeeded in measuring the lowest oxygen partial pressures measured, to the knowledge of the investigators, with a solid electrolyte cell on a dynamic flowing gas buffer system. This was achieved with a yttria doped thoria oxygen sensor cell. Even lower pressures beyond this measurement capability have been achieved.
Download or read book Study program to develop and evaluate die and container materials for the growth of silicon ribbons written by Miami Research Laboratories and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study Program to Develop and Evaluate Die and Container Materials for the Growth of Silicon Ribbons written by L. A. Addington and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study Program to Develop and Evaluate Die and Container Materials for the Growth of Silicon Ribbons written by Miami Research Laboratories and published by . This book was released on 1978 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study program to develop and evaluate die and container materials for the growth of silicon ribbons written by Miami Research Laboratories and published by . This book was released on 1978 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1979 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1979 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1968 with total page 1220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1979 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Energy Update written by and published by . This book was released on 1981 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1980 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
