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Laves
Laves may refer to: * Fritz Laves (1906-1978), a German mineralogist and crystallographer, best known for his description of the intermetallic Laves phases. * Georg Ludwig Friedrich Laves Georg Ludwig Friedrich Laves (17 December 1788 – 30 April 1864) was a German architect, civil engineer and urban planner. Born in Uslar, Lower Saxony, he lived and worked primarily in the city of Hanover and also died there. He was appointe ... (December 15, 1788 – April 30, 1864) a leading neoclassical style German architect, civil engineer and urban planner of the Kingdom of Hanover. * Gerhardt Laves (July 15, 1906 - March 14, 1993) a graduate student at the University of Chicago and Yale University doing fieldwork on Australian Aboriginal languages. * Laves phase, a particular class of intermetallic phases {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laves Phase
Laves phases are intermetallic phases that have composition AB2 and are named for Fritz Laves who first described them. The phases are classified on the basis of geometry alone. While the problem of packing spheres of equal size has been well-studied since Gauss, Laves phases are the result of his investigations into packing spheres of two sizes. Laves phases fall into three Strukturbericht types: cubic MgCu2 (C15), hexagonal MgZn2 (C14), and hexagonal MgNi2 (C36). The latter two classes are unique forms of the hexagonal arrangement, but share the same basic structure. In general, the A atoms are ordered as in diamond, hexagonal diamond, or a related structure, and the B atoms form tetrahedra In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners. The tetrahedron is the simplest of all th ... around the A atoms for the AB2 str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerhardt Laves
Gerhardt Laves (July 15, 1906 – March 14, 1993) was a graduate student at the University of Chicago and Yale University who between August 1929 and August 1931 undertook extensive fieldwork on Australian Aboriginal languages. Laves was probably the first person trained in modern linguistic fieldwork and analysis to study Australian languages. He intensively studied six languages: 'Kumbaingeri' ( Gumbaynggir) in northern New South Wales; 'Karadjeri' (Karajarri) at Lagrange Bay, north-west Western Australia; 'Barda' ( Bardi) at Cape Leveque, north-west Western Australia; 'Kurin' ( Goreng) near Albany Western Australia; and 'Hermit Hill' ( Matngele) and 'Ngengumeri ( Ngan'gimerri) at Daly River Northern Territory. On the basis of his work Laves concluded that all Australian languages belong to a single language family. After his fieldwork he returned to Chicago, married 932and followed his mentor, Edward Sapir, to Yale in New Haven, CT where he continued his graduate studies. Befo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fritz Laves
Fritz Henning Emil Paul Berndt Laves (27 February 1906 – 12 August 1978) was a German crystallographer who served as the president of the German Mineralogical Society from 1956 to 1958. He is the namesake of Laves phases and the Laves tilings; the Laves graph, a highly-symmetrical three-dimensional crystal structure that he studied, was named after him by H. S. M. Coxeter. Education and career Laves was born in Hanover, the son of a judge and the great-grandson of architect Georg Ludwig Friedrich Laves. He grew up in Göttingen, where his interests included piano music as well as collecting rocks and minerals. He began his university studies in geology in 1924 at the University of Innsbruck, and continued at the University of Göttingen before moving to ETH Zurich for doctoral studies under Paul Niggli. In 1929 he took a faculty position under Victor Goldschmidt at Göttingen. He tried unsuccessfully to prevent Goldschmidt from being dismissed in 1933, and later had diffic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intermetallic
An intermetallic (also called an intermetallic compound, intermetallic alloy, ordered intermetallic alloy, and a long-range-ordered alloy) is a type of metallic alloy that forms an ordered solid-state compound between two or more metallic elements. Intermetallics are generally hard and brittle, with good high-temperature mechanical properties. They can be classified as stoichiometric or nonstoichiometic intermetallic compounds. Although the term "intermetallic compounds", as it applies to solid phases, has been in use for many years, its introduction was regretted, for example by Hume-Rothery in 1955. Definitions Research definition Schulze in 1967 defined intermetallic compounds as ''solid phases containing two or more metallic elements, with optionally one or more non-metallic elements, whose crystal structure differs from that of the other constituents''. Under this definition, the following are included: #Electron (or Hume-Rothery) compounds #Size packing phases. e.g. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Ludwig Friedrich Laves
Georg Ludwig Friedrich Laves (17 December 1788 – 30 April 1864) was a German architect, civil engineer and urban planner. Born in Uslar, Lower Saxony, he lived and worked primarily in the city of Hanover and also died there. He was appointed Oberhofbaudirektor, "court master builder", in 1852. As the leading architect of the Kingdom of Hanover for a career spanning 50 years, he had great influence on the urban development of this city. Alongside Karl Friedrich Schinkel in Berlin and Leo von Klenze in Munich, Laves was one of the most accomplished neoclassical style architects of Germany. As an engineer he developed a special iron truss lenticular or "fishbelly" beam bridge construction method, the so-called "Lavesbrücke". Laves found his final resting place in the Engesohde Cemetery (Engesohder Friedhof) in Hanover. Among his most important works are: * Full reconstruction of the Leineschloss ( Leine Palace or Leine Castle), between 1816 and 1844 (severely damaged in World ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
