Download or read book Etch Pits in R D X Crystals written by and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this memorandum a method of producing etch pits in crystals of R.D.X. is described. The effects of nature of etchant and crystal history on etching are investigated and the dependence of etch pit shape on crystal face demonstrated. The habits of R.D.X. crytals grown from different solvents are identified.
Download or read book Dislocations in Solids written by and published by Elsevier. This book was released on 2004-08-05 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first volume to appear under the joint editorship of J.P. Hirth and F.R.N. Nabarro. While Volume 11 concentrated on the single topic of dislocations and work hardening, the present volume spreads over the whole range of the study of dislocations from the application by Kléman and his colleagues of homotopy theory to classifying the line and point defects of mesomorphic phases to Chaudhri's account of the experimental observations of dislocations formed around indentations.Chapter 64, by Cai, Bulatove, Chang, Li and Yip, discusses the influence of the structure of the core of a dislocation on its mobility. The power of modern computation allows this topic to be treated from the first principles of electron theory, and with empirical potentials for more complicated problems. Advances in electron microscopy allow these theoretical predictions to be tested.In Chapter 65, Xu analyzes the emission of dislocations from the tip of a crack and its influence on the brittle to ductile transition. Again, the treatment is predominantly theoretical, but it is consistently related to the very practical example of alpha iron.In a dazzling interplay of experiment and abstract mathematics, Kléman, Lavrentovich and Nastishin analyze the line and point structural defects of the many mesomorphic phases which have become known in recent years.Chapter 67, by Coupeau, Girard and Rabier, is essentially experimental. It shows how the various modern techniques of scanning probe microscopy can be used to study dislocations and their interaction with the free surface.Chapter 68, by Mitchell and Heuer, considers the complex dislocations that can form in ceramic crystals on the basis of observations by transmission electron microscopy and presents mechanistic models for the motion of the dislocations in various temperature regimes.While the underlying aim of the study of dislocations in energetic crystals by Armstrong and Elban in Chapter 69 is to understand the role of dislocations in the process of detonation, it has the wider interest of studying dislocations in molecular crystals which are ``elastically soft, plastically hard, and brittle''.Chaudhri in Chapter 70 discusses the role of dislocations in indentation processes, largely on the basis of the elastic analysis by E.H. Yoffe. The special case of nanoindentations is treated only briefly.
Download or read book Dislocations in Solids written by Frank R.N. Nabarro and published by Elsevier. This book was released on 2004-12 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first volume to appear under the joint editorship of J.P. Hirth and F.R.N. Nabarro. While Volume 11 concentrated on the single topic of dislocations and work hardening, the present volume spreads over the whole range of the study of dislocations from the application by Kléman and his colleagues of homotopy theory to classifying the line and point defects of mesomorphic phases to Chaudhri's account of the experimental observations of dislocations formed around indentations. Chapter 64, by Cai, Bulatove, Chang, Li and Yip, discusses the influence of the structure of the core of a dislocation on its mobility. The power of modern computation allows this topic to be treated from the first principles of electron theory, and with empirical potentials for more complicated problems. Advances in electron microscopy allow these theoretical predictions to be tested. In Chapter 65, Xu analyzes the emission of dislocations from the tip of a crack and its influence on the brittle to ductile transition. Again, the treatment is predominantly theoretical, but it is consistently related to the very practical example of alpha iron. In a dazzling interplay of experiment and abstract mathematics, Kléman, Lavrentovich and Nastishin analyze the line and point structural defects of the many mesomorphic phases which have become known in recent years. Chapter 67, by Coupeau, Girard and Rabier, is essentially experimental. It shows how the various modern techniques of scanning probe microscopy can be used to study dislocations and their interaction with the free surface. Chapter 68, by Mitchell and Heuer, considers the complex dislocations that can form in ceramic crystals on the basis of observations by transmission electron microscopy and presents mechanistic models for the motion of the dislocations in various temperature regimes. While the underlying aim of the study of dislocations in energetic crystals by Armstrong and Elban in Chapter 69 is to understand the role of dislocations in the process of detonation, it has the wider interest of studying dislocations in molecular crystals which are ``elastically soft, plastically hard, and brittle''. Chaudhri in Chapter 70 discusses the role of dislocations in indentation processes, largely on the basis of the elastic analysis by E.H. Yoffe. The special case of nanoindentations is treated only briefly.
Download or read book Proceedings written by and published by . This book was released on 1989 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dislocation Etching of Cyclotrimethylene Trinitramine Crystals written by W. Connick and published by . This book was released on 1968 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Habit faces of crystals of solution grown cyclotrimethylene trinitramine (RDX, cyclonite) are identified and dislocations characterised using the etch pit technique. The effects of nature of etchant and crystal history on etching are investigated and the dependence of etch pit shape on crystal face demonstrated. Observations by optical and scanning electron microscopy are used to study etch pit structure. The effects of thermal treatment and plastic deformation on dislocation glide and multiplication are examined and possible glide planes postulated. (Author).
Download or read book Microindentation Techniques in Materials Science and Engineering written by P. J. Blau and published by ASTM International. This book was released on 1986 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crystal Indentation Hardness written by Ronald W. Armstrong and published by MDPI. This book was released on 2018-07-05 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Crystal Indentation Hardness" that was published in Crystals
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Chemical Reaction Dynamics written by Peter M. Rentzepis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the formal lectures and contributed papers presented at the NATO Advanced Study Institute on. the Advances in Chemical Reaction Dynamics. The meeting convened at the city of Iraklion, Crete, Greece on 25 August 1985 and continued to 7 September 1985. The material presented describes the fundamental and recent advances in experimental and theoretical aspects of, reaction dynamics. A large section is devoted to electronically excited states, ionic species, and free radicals, relevant to chemical sys tems. In addition recent advances in gas phase polymerization, formation of clusters, and energy release processes in energetic materials were presented. Selected papers deal with topics such as the dynamics of electric field effects in low polar solutions, high electric field perturbations and relaxation of dipole equilibria, correlation in picosecond/laser pulse scattering, and applications to fast reaction dynamics. Picosecond transient Raman spectroscopy which has been used for the elucidation of reaction dynamics and structural changes occurring during the course of ultrafast chemical reactions; propagation of turbulent flames and detonations in gaseous· energetic systems are also discussed in some detail. In addition a large portion of the program was devoted to current experimental and theoretical studies of the structure of the transition state as inferred from product state distributions; translational energy release in the photodissociation of aromatic molecules; intramolecu lar and intraionic dynamic processes.
Download or read book December 16 written by Görlich and published by Walter de Gruyter GmbH & Co KG. This book was released on 2022-01-19 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: No detailed description available for "December 16".
Download or read book Proceedings Seventh Symposium International on Detonation written by and published by . This book was released on 1982 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by Defence Standards Laboratories (Australia) and published by . This book was released on 1969 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by Defence Research Laboratories and published by . This book was released on 1967 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shock Compression of Condensed Matter 1997 written by S. C. Schmidt and published by . This book was released on 1998 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Presents 236 papers from the July/August, 1997 conference. Included are sections on equations of state; phase transitions; mechanical properties of reactive and nonreactive materials; material properties and synthesis; optical, electrical, and laser studies; hypervelocity phenomenology; and impact and penetration mechanics. Attention is focused on the strain and failure behavior, the weak impulse initiation, and the safety aspects of explosives. Developments in measurement techniques, particularly those employing fast optical methods, are also discussed. The CD-ROM contains the contents of the text. Annotation copyrighted by Book News, Inc., Portland, OR.
Download or read book Study of Etching Pits in a Large grain Single Cell Bulk Niobium Cavity written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Performance of SRF cavities are limited by non-linear localized effects. The variation of local material characters between "hot" and "cold" spots is thus of intense interest. Such locations were identified in a BCP-etched large-grain single-cell cavity and removed for examination by high resolution electron microscopy (SEM), electron-back scattering diffraction microscopy (EBSD), optical microscopy, and 3D profilometry. Pits with clearly discernable crystal facets were observed in both "hotspot" and "coldspot" specimens. The pits were found in-grain, at bi-crystal boundaries, and on tri-crystal junctions. They are interpreted as etch pits induced by surface crystal defects (e.g. dislocations). All "coldspots" examined had qualitatively low density of etching pits or very shallow tri-crystal boundary junction. EBSD revealed crystal structure surrounding the pits via crystal phase orientation mapping, while 3D profilometry gave information on the depth and size of the pits. In addition, a survey of the samples by energy dispersive X-ray analysis (EDX) did not show any significant contamination of the samples surface.
Download or read book Crystal Properties and Preparation written by and published by . This book was released on 1988 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research in Progress written by and published by . This book was released on 1973 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
