macrostructures definition of macrostructures in the Free Online Encyclopedia.

macrostructure [¦mak·rō′strək·chər]

(metallurgy)

Structure of an etched metal visible to the naked eye or at magnifications up to 10 diameters.

(science and technology)

The external forms of a structure that can be observed without magnification, for example, the cubic crystal form of sodium chloride.

Macrostructure

(of a metal), the structure of a metal that is visible visually or under a magnifying glass (that is, under magnification of up to 25 X). The macrostructure is studied in flat samples, called templates, cut from an item or blank, and also on the fracture surfaces of articles. To reveal the surface structure of a template, it is polished carefully and then etched with solutions of acids or alkalies.

The study of the macrostructure reveals discontinuities in the metal (cavities, porosity, gas bubbles, stratification, and fissures), distribution of impurities and nonmetallic inclusions, shape and distribution of crystallites (grains) in various parts of the item, and sometimes even the structural features of individual grains of the metal. Studies of the macrostructure lead to conclusions on the quality of initial materials and the correctness of the conduct of casting, pressure working, and welding processes. In some cases the quality of metals is characterized by the type of fracture, which makes possible determination of the path of the plane of fracture (through the body or along the grain boundaries) and of the causes of fracture.

V. IU. NOVIKOV

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No references found	To date, however, performance, production and cost limitations have prevented the successful integration of CN macrostructures into large-scale trials. Nanocomp wins two Air Force SBIR contracts: government shows keen ... by New Hampshire Business Review Morphologically the formations in the Vadja rocks resemble most of all the structures described in the petroleum-bearing deposits of the Zechstein limestone [21, 29] and macrostructures (2-10 cm) of antraconite in Ordovician graptolitic argillite (Dictyonema Shale) of Estonian [30]. Unusual features of the middle Devonian Narva formation covering the ... by Kleesment, A.; Shogenova, A.; Shogenov, K. / Oil Shale She deserves admiration both for her brilliant Lisztian technique and her ability to shape and model the macrostructures of the music while at the same time (as we have come to take for granted in her case) to pay perfect attention to detail. Bedrich Smetana by Nemec, Veroslav / Czech Music	macroreticular resin macrorheology Macroscelidea Macroscelididae macrosclereid macroscopic macroscopic anisotropy macroscopic cross section macroscopic property macroscopic state macroscopic stress macroscopic theory macroscopy macroseptum macroskeleton macrosonics macrosporangium macrospore Macrosporioses macrosporogenesis macrostate Macrostomida Macrostomidae macrostress Macrostructure macrostructures macrostylous macrosystem macrotape Macrotermitinae macrothermophyte macrotome Macrouridae Macroveliidae Macrura macrurous Macster MacStinger, Mrs. MACSYMA Mactan MacTCP Mactel MacTerminal macula macula densa Macula Lutea macular degeneration maculate maculopapule maculose Macumba	Macrosomic neonate Macrosomic neonate Macrosomic newborn Macrosomic newborn Macrosomic pregnancy Macrosomic pregnancy Macrosomy Macrosomy Macrosonics macrosporangia macrosporangia macrosporangia macrosporangium macrosporangium macrospore macrospore macrospore Macrosporic Macrosporioses macrosporogenesis Macross Broadcasting System Macross Plus Macross Tour of Duty Macrostate macrostomia Macrostomida Macrostomidae macrostress macrostructural Macrostructure macrostructures macrostylous macrosystem macrotape macrotear Macrotermitinae Macrothelypteris macrothermophyte Macrothrombocyte Macrothylacia rubi macrotia macrotia macrotia Macrotis Macrotis lagotis macrotome Macrotone Macrotous Macrotrachelus macrotus Macrotus californicus Macrotyloma Macrotyloma uniflorum Macroura Macrourid Macrourid Macrouridae Macrouridae Macrovascular disease Macrovascular disease Macrovascular disease

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To date, however, performance, production and cost limitations have prevented the successful integration of CN macrostructures into large-scale trials.

Nanocomp wins two Air Force SBIR contracts: government shows keen ... by New Hampshire Business Review

Morphologically the formations in the Vadja rocks resemble most of all the structures described in the petroleum-bearing deposits of the Zechstein limestone [21, 29] and macrostructures (2-10 cm) of antraconite in Ordovician graptolitic argillite (Dictyonema Shale) of Estonian [30].

Unusual features of the middle Devonian Narva formation covering the ... by Kleesment, A.; Shogenova, A.; Shogenov, K. / Oil Shale

She deserves admiration both for her brilliant Lisztian technique and her ability to shape and model the macrostructures of the music while at the same time (as we have come to take for granted in her case) to pay perfect attention to detail.

Bedrich Smetana by Nemec, Veroslav / Czech Music

Macrostructure (redirected from macrostructures)

Macrostructure
(redirected from macrostructures)