THE CHARACTER OF CHANGE OF PROPERTIES OF STEEL FIBRE CONCRETE AFTER TEMPERATURE EXPOSURE
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Ингушский государственный университет, гA porous, homogeneous, phosphorous‐enriched oxide nanolayer was realized on the new Ti‐15Ta‐5Zr alloy surface by the anodic galvanostatic electrodeposition in phosphoric acid solution. This nanolayer contains TiO 2 , ZrO 2 oxides, tantalum suboxides, and ions incorporated in the time of the electrodeposition process and has a thickness of 15.5 nm (X‐ray photoelectron spectroscopy data). Atomic force microscopy determined a homogeneous roughness. Scanning electron microscopy evinced a porous microstructure that can stimulate the growth of the bone tissue into pores. The presence of the anions promotes the electrostatic bonds between the nanolayer and different species from the biofluid, namely, osteoinduction. The anodic oxidation nanolayer improved all electrochemical and corrosion parameters conferring superior protection to the substrate by its higher resistance to the ion migration. Impedance spectra showed that the electrodeposited nanolayer is formed by an inner, dense, barrier layer and an outer porous layer. The nanolayer thickened in time, namely, is bioactive. The oxidized nanolayer is able to protect the alloy from ion release, to assure long‐term corrosion resistance, to minimize adverse reactions, to increase alloy bioactivity, to stimulate cell growth, and to favor osseointegration.
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For a long time,many people have been believing that character decides fate.They believe that one's character is born to him and can't be changed without realizing that one's character can be shaped by the environment.In this article the writer mainly discusses that one's fate can be shaped by adjusting to the environment through the comparison between Scarlet and Emily.
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Journal Article A CHARACTER IS A CHARACTER IS A CHARACTER Get access Journal of Heredity, Volume 54, Issue 1, January 1963, Page 38, https://doi.org/10.1093/oxfordjournals.jhered.a107215 Published: 01 January 1963
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Porous SiC Ceramics with Multiple Pore Structure Fabricated via Gelcasting and Solid State Sintering
Porous SiC ceramics with multiple pore structures were fabricated via gelcasting and solid state sintering.A novel gelling agent of Isobam was applied and PMMA was used as both foam stabilizer and pore forming agent.The mechanical properties of porous SiC ceramics were investigated as functions of PMMA content, rotating speed of ball mill, and sintering temperature.With PMMA content increasing from 5wt% to 20wt%, the foaming effect was inhibited while the stability of bubbles increased.When the rotating speed was 220 r/min, the open porosities of the as-prepared SiC ceramics sintered at 2100 varied ℃ from 51.5% to 72.8%, and compressive strength varied from 7.9 to 48.2 MPa.With the rotating speed increasing from 220 to 280 r/min, the foaming effect was aggravated and the porosities of SiC ceramics sintered at 2100 increased.℃ While the sintering temperature increasing from 2050 to 2150 , ℃ the SiC ceramics prepared with PMMA content of 20wt% at rotating speed of 220 r/min decreased in the open porosities while increased in compressive strength.
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This chapter contains sections titled: Depiction of character Character in prehistory Character in history The emergence of character from relationship A psychological analysis of character Relationships with books The character of Mr Darcy
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Nanocrystalline material
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