Results 61 to 70 of about 454,449 (380)
OBTAINING AND RESEARCH OF MICROCRYSTAL POWDERS OF LITHIUM NIOBATE AND TANTALATE [PDF]
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2016 A method of synthesis of microcrystal single phase high disperse powders of lithium niobate and tantalate with and narrow distribution of particle size was developed.
S.M. Masloboeva +3 more
doaj
Earthquakes: from chemical alteration to mechanical rupture [PDF]
Physics Reports, vol. 313:5, 238-292 (1999), 1998 In the standard rebound theory of earthquakes, elastic deformation energy is progressively stored in the crust until a threshold is reached at which it is suddenly released in an earthquake. We review three important paradoxes, the strain paradox, the stress paradox and the heat flow paradox, that are difficult to account for in this picture, either ...
arxiv +1 more source
Bridging Nature and Technology: A Perspective on Role of Machine Learning in Bioinspired Ceramics
Advanced Engineering Materials, EarlyView.Machine learning (ML) is revolutionizing the development of bioinspired ceramics. This article investigates how ML can be used to design new ceramic materials with exceptional performance, inspired by the structures found in nature. The research highlights how ML can predict material properties, optimize designs, and create advanced models to unlock a ...
Hamidreza Yazdani Sarvestani +2 more
wiley +1 more source
Scientific Reports, 2017 We have developed an approach for automatic 3D geological mapping based on conversion of chemical composition of rocks to mineral composition by logical computation. It allows to calculate mineral composition based on bulk rock chemistry, interpolate the
A. O. Kalashnikov +3 more
doaj +1 more source
Dynamic evolution of major element chemistry in protoplanetary disks and its implications for chondrite formation [PDF]
, 2020 Chondrites are the likely building blocks of Earth, and identifying the group of chondrite that best represents Earth is a key to resolving the state of the early Earth. The origin of chondrites, however, remains controversial partly because of their puzzling major element compositions, some exhibiting depletion in Al, Ca, and Mg.
arxiv +1 more source
Green Multicomponent Alloys with Excellent Multifunctional and Mechanical Properties
Advanced Engineering Materials, EarlyView.A sustainable strategy for developing multifunctional green multicomponent alloys (MCAs) using cheap scrap materials is demonstrated. The developed green MCAs with disordered–ordered structures enable a joint regulation of dislocation behavior, scattering of conduction electrons, and motion of magnetic domain walls, leading to high strength and ...
Ronggen Gong +7 more
wiley +1 more source
Rudarsko-geološko-naftni Zbornik, 2004 Mineral relationships and their chemistry were studied in some basic magmatic rocks of Banija ophiolite complex. On the basis of mineral and structural characteristics three kind of rocks are distinguished: metadiabase I (being characterized by secondary
Vesnica Garašić +2 more
doaj
Hittite Journal of Science and Engineering, 2020 This paper presents the generation of metamorphic sole rocks through the detailed geochemical and petrographical analysis of field work carried out on the Kömürhan ophiolite.
Nusret Nurlu
doaj +1 more source
Antiferromagnetic spin-frustrated layers of corner-sharing Cu4 tetrahedra on the kagome lattice in volcanic minerals Cu5O2(VO4)2(CuCl), NaCu5O2(SeO3)2Cl3, and K2Cu5Cl8(OH)4 2H2O [PDF]
J. Phys.: Condens. Matter 30 (2018) 425801 (23pp), 2018 The objective of the present work was to analyze the possibility of realization of quantum spin liquid in three volcanic minerals - averievite (Cu5O2(VO4)2(CuCl)), ilinskite (NaCu5O2(SeO3)2Cl3), and avdononite (K2Cu5Cl8(OH)4 2H2O - from the crystal chemistry point of view.
arxiv +1 more source
A Strategy for Teaching an Effective Undergraduate Mineralogy Course [PDF]
, 2004 An effective undergraduate mineralogy course provides students with a familiarity and understanding of minerals that is necessary for studying the Earth.
R. Swope, Reto Gieré
core +1 more source