Author: Frederick SchmidPublisher:
ISBN:
Category : Ingot molds
Languages : en
Pages : 52
Book Description
Silicon Ingot Casting--heat Exchanger Method (HEM) Multi-wire Slicing--fixed Abrasive Slicing Technique (FAST)
Author: Frederick SchmidPublisher:
ISBN:
Category : Ingot molds
Languages : en
Pages : 36
Book Description
Solar Energy Update
Author: Energy Research Abstracts
Author: Government reports annual index
Author: Scientific and Technical Aerospace Reports
Author: Energy Research Abstracts
Author: Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 632
Book Description
Includes all works deriving from DOE, other related government-sponsored information and foreign nonnuclear information.
Government Reports Announcements & Index
Author: Silicon Ingot Casting - Heat Exchanger Method (HEM); Multi-wire Slicing - Fixed Abrasive Slicing Technique (FAST). Phase IV. Silicon Sheet Growth Development for the Large Area Sheet Task of the Low-Cost Solar Array Project. Quarterly Progress Report No. 4, October 1-December 31, 1980
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The crystallinity of large-size ingots has been studied as a function of the heat flow conditions at the bottom of the ingot. The size of the ingot has an important effect on crystallinity. The breakdown in crystallinity across the bottom has been resolved to an area in the vicinity of the melted-back seed. Generally, homogeneous resistivity distribution has been achieved all over the ingot. Electroplating of diamonds on one side of the wirepack has an important effect on slicing performance. However, diamond electroplating must be carefully controlled to have a good seat in the grooved rollers. An in-house electroplating facility is now operational. Good performance was achieved with the initial in-house electroplated wirepacks. Projected add-on cost of HEM ingot casting process has been carried out using IPEG analysis. The value that was obtained is $8.65/m2, well below the allocation of $18.15/m2 to meet the 1986 goal.
Silicon Ingot Casting
Author: Silicon Ingot Casting - Heat Exchanger Method Multi-wire Slicing - Fixed Abrasive Slicing Technique, Phase III. Silicon Sheet Growth Development for the Large Area Sheet Task of the Low-Cost Solar Array Project. Quarterly Progress Report No. 3, April 1-June 30, 1979
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Ingot casting has been scaled up to 16 cm x 16 cm square cross-section size weighing up to 8.1 kg. The high degree of crystallinity has been maintained in the large ingot. For large sizes, the non-uniformity of heat treatment causes chipping of the surface of the ingot. Significant effort and progress have been made in the development of a uniform graded structure in the silica crucibles. The high speed slicer has been modified so that the blade-head weight is reduced to 37 lb. This has allowed higher surface speeds of up to 500 fpm. Slicing of 10 cm diameter workpieces at these speeds has increased the throughput of the machine to 5.7 mils/min, 0.145 mm/min, 50% more than the projected cutting rates used in the economic analysis.