having or consisting of crystals that are variously oriented
Word origin
[1920–25; poly- + crystalline]This word is first recorded in the period 1920–25. Other words that entered Englishat around the same time include: Unknown Soldier, checkout, montage, slalom, superpowerpoly- is a combining form with the meanings “much, many” and, in chemistry, “polymeric,”used in the formation of compound words. Other words that use the affix poly- include: polyandrous, polyculture, polyethylene
Examples of 'polycrystalline' in a sentence
polycrystalline
In general, polycrystalline ceramics exhibit lower thermal conductivities than their associated single crystals.
A. Franco Júnior, D. J Shanafield 2004, 'Thermal conductivity of polycrystalline aluminum nitride (AlN) ceramics Condutividadetérmica de cerâmicas policristalinas de nitreto de alumínio (AlN)', Cerâmicahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132004000300012. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Therefore, the properties in polycrystalline electrolyte can be adjusted by controlling the grain boundary structures.
Fei Ye, Chun Yu Yin, Ding Rong Ou, Toshiyuki Mori 2014, 'Relationship between lattice mismatch and ionic conduction of grain boundary in YSZ',Progress in Natural Science: Materials Internationalhttp://www.sciencedirect.com/science/article/pii/S1002007114000082. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
He used these expressions to describe nucleation in polycrystalline materials.
Elena Villa, Paulo R Rios 2011, 'TRANSFORMATION KINETICS FOR NUCLEATION ON RANDOM PLANES AND LINES', Image Analysis and Stereologyhttp://www.ias-iss.org/ojs/IAS/article/view/907. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Dark field images suggest that the structures (“mineral structures”) are polycrystalline.
Elizabeth A. McNally, Henry P. Schwarcz, Gianluigi A. Botton, A. Larry Arsenault 2012, 'A Model for the Ultrastructure of Bone Based on Electron Microscopy of Ion-MilledSections', PLoS ONE10.1371/journal.pone.0029258. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The developed technology gives the possibility to produce polycrystalline optical material on an industrial scale.
A. A. Dunaev, I. L. Egorova 2015, 'PROPERTIES AND OPTICAL APPLICATION OF POLYCRYSTALLINE ZINC SELENIDE OBTAINED BY PHYSICALVAPOR DEPOSITION', Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optikihttp://ntv.ifmo.ru/file/article/13525.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In this work we investigate the glycerol electrooxidation reaction on polycrystalline gold in alkaline media.
Déborah Z. Jeffery, Giuseppe A. Camara 2010, 'The formation of carbon dioxide during glycerol electrooxidation in alkaline media:First spectroscopic evidences', Electrochemistry Communicationshttp://www.sciencedirect.com/science/article/pii/S1388248110002432. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
X-ray diffraction analysis indicated that the all silicon films are polycrystalline.
Quido Jackuliak, Pavol Sutta 2003, 'Lattice and Micro-Strains in Polycrystalline Silicon Films Deposited on Ceramic Substrates',Advances in Electrical and Electronic Engineeringhttp://advances.utc.sk/index.php/AEEE/article/view/319. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The addition of metal slots in the polycrystalline brackets did not significantly decrease frictional values.
Ariana Pulido Guerrero, Odilon Guariza Filho, Orlando Tanaka, Elisa Souza Camargo,Sérgio Vieira 2010, 'Evaluation of frictional forces between ceramic brackets and archwires of differentalloys compared with metal brackets', Brazilian Oral Researchhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242010000100007. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We provide a critical appraisal of available data of polycrystalline elastic properties of alloyed cementite.
G. Ghosh 2015, 'A first-principles study of cementite (Fe3C) and its alloyed counterparts: Elasticconstants, elastic anisotropies, and isotropic elastic moduli', AIP Advanceshttp://dx.doi.org/10.1063/1.4928208. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)