Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 91
Book Description
This investigation objectively extends certain non-destructive test methods to include pyrolytic graphite as one of the newer materials that can be readily examined by these methods. Each of the methods used is described and basic concepts relatedto the apparatus and technique involved are reviewed. Conclusions are as follows: (1) penetrant inspection is a rapid method of deter mining connected surface structure discontinui ties; (2) the sonic method is not a reliable technique for locating internal flaws; (3) ultra sonic examination is the optimum method for determination of internal discontinuities; (4) radiography is the optimum method for nodule characteristics and micro-structure determina tion; (5) the X-ray diffraction method is the optimum method for internal stress evaluations; (6) the Eddy-Current method is the optimum for determination of parallelism of layer planes; and (7) thermal gradient methods, for use on pyrolytic graphite examinations, are not yet sufficiently developed. Results appear encouraging.
MANUFACTURING RESEARCH INVESTIGATION - NON DESTRUCTIVE TESTING, INSPECTION - PYROLYTIC GRAPHITE.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 91
Book Description
This investigation objectively extends certain non-destructive test methods to include pyrolytic graphite as one of the newer materials that can be readily examined by these methods. Each of the methods used is described and basic concepts relatedto the apparatus and technique involved are reviewed. Conclusions are as follows: (1) penetrant inspection is a rapid method of deter mining connected surface structure discontinui ties; (2) the sonic method is not a reliable technique for locating internal flaws; (3) ultra sonic examination is the optimum method for determination of internal discontinuities; (4) radiography is the optimum method for nodule characteristics and micro-structure determina tion; (5) the X-ray diffraction method is the optimum method for internal stress evaluations; (6) the Eddy-Current method is the optimum for determination of parallelism of layer planes; and (7) thermal gradient methods, for use on pyrolytic graphite examinations, are not yet sufficiently developed. Results appear encouraging.
Publisher:
ISBN:
Category :
Languages : en
Pages : 91
Book Description
This investigation objectively extends certain non-destructive test methods to include pyrolytic graphite as one of the newer materials that can be readily examined by these methods. Each of the methods used is described and basic concepts relatedto the apparatus and technique involved are reviewed. Conclusions are as follows: (1) penetrant inspection is a rapid method of deter mining connected surface structure discontinui ties; (2) the sonic method is not a reliable technique for locating internal flaws; (3) ultra sonic examination is the optimum method for determination of internal discontinuities; (4) radiography is the optimum method for nodule characteristics and micro-structure determina tion; (5) the X-ray diffraction method is the optimum method for internal stress evaluations; (6) the Eddy-Current method is the optimum for determination of parallelism of layer planes; and (7) thermal gradient methods, for use on pyrolytic graphite examinations, are not yet sufficiently developed. Results appear encouraging.
U.S. Government Research Reports
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 254
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 254
Book Description
Technical Abstract Bulletin
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 828
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 828
Book Description
Investigation of Nondestructive Methods for the Evaluation of Graphite Materials
Author: G. E. Lockyer
Publisher:
ISBN:
Category :
Languages : en
Pages : 89
Book Description
A program of investigation was begun in April 1964, to determine nondestructive methods and techniques for evaluating and characterizing graphite materials. The properties and behavior characteristics of graphite which are important to ablative applications were identified and correlated with the applicable NDT methods and techniques during the first year. Emphasis was directed in verification of the applicability of the various NDT techniques and correlation to characterize graphite in relation to service performance has been an item of major concern. Statistical analysis of these correlations has established the significance of the correlations for predicting the related material properties. An extensive analysis of the application of NDT flaw testing and properties evaluation in regard to quality and reliability is presented. A detailed discussion of infrared technique development activities for measuring thermal properties is also presented. The influence of attenuation and the related effects of frequency distortion on velocity measurements is evaluated and described.
Publisher:
ISBN:
Category :
Languages : en
Pages : 89
Book Description
A program of investigation was begun in April 1964, to determine nondestructive methods and techniques for evaluating and characterizing graphite materials. The properties and behavior characteristics of graphite which are important to ablative applications were identified and correlated with the applicable NDT methods and techniques during the first year. Emphasis was directed in verification of the applicability of the various NDT techniques and correlation to characterize graphite in relation to service performance has been an item of major concern. Statistical analysis of these correlations has established the significance of the correlations for predicting the related material properties. An extensive analysis of the application of NDT flaw testing and properties evaluation in regard to quality and reliability is presented. A detailed discussion of infrared technique development activities for measuring thermal properties is also presented. The influence of attenuation and the related effects of frequency distortion on velocity measurements is evaluated and described.
Bibliography of Scientific and Industrial Reports
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 932
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 932
Book Description
Investigation of Pyrolytic Graphite as Crucible Material for Zirconium Melting
Author: R. E. Westerman
Publisher:
ISBN:
Category : Graphite
Languages : en
Pages : 34
Book Description
Publisher:
ISBN:
Category : Graphite
Languages : en
Pages : 34
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 464
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 464
Book Description
U.S. Government Research & Development Reports
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 704
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 704
Book Description
Nuclear Science Abstracts
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 958
Book Description
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 958
Book Description
British Journal of Non-destructive Testing
Author:
Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 728
Book Description
Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 728
Book Description