Results 21 to 30 of about 67,798 (255)
Nanocrystalline apatites: From powders to biomaterials [PDF]
, 2009 Non-stoichiometric nanocrystalline apatite powders are used to elaborate highly-bioactive biomaterials. Their exceptional surface reactivity arises from a structured but rather unstable hydrated layer involving ions in nonapatitic chemical environments ...
Estournès, Claude +8 more
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Effect of 1 wt% LiF additive on the densification of nanocrystalline Y2O3 ceramics by spark plasma sintering [PDF]
, 2011 Densification of nanocrystalline cubic yttria (nc-Y2O3) powder, with 18 nm crystal size and 1 wt% LiF as a sintering additive was investigated. Specimens were fabricated by spark plasma sintering at 100 MPa, within the temperature range of 700–1500 °C ...
Estournès, Claude +7 more
core +1 more source
Corrosion Behavior of Amorphous-Nanocrystalline Ni50Ti50 Shape Memory Alloy [PDF]
Archives of Metallurgy and Materials, 2020 In the present study, the corrosion behaviors of amorphous-nanocrystalline Ni50Ti50 shape memory alloy with different crystallite sizes were investigated. The Ni50Ti50 homogenized specimens were hot rolled and annealed at 950°C.
H. Aghabeygzadeh +2 more
doaj +1 more source
Progress on the preparation of nanocrystalline apatites and surface characterization: Overview of fundamental and applied aspects [PDF]
, 2013 Nanocrystalline calcium phosphate apatites constitute the main inorganic part of hard tissues, and a growing focus is devoted to prepare synthetic analogs, so-called “biomimetic”, able to precisely mimic the morphological and physico-chemical features of
Iafisco, Michele +5 more
core +1 more source
Crystallization and electrochemical corrosion behaviors of nanometer amorphous Ni-P alloys
Materials Research Express, 2020 Ni-P alloy coatings with a phosphorus content of 11.65 wt% were deposited by electroless plating. The as-plated nano-amorphous Ni-P alloy coatings were heated in air for 1 h at 200–500 °C.
Zhizhen Li +3 more
doaj +1 more source
Review of thermo‐kinetic correlation during grain growth in nanocrystalline materials
International Journal of Ceramic Engineering & Science, 2020 Nanocrystalline (NC) materials exhibit many unique properties over their coarse‐grained counterparts due to the high grain boundary density and the small grain size, but they are too difficult to be used in engineering environment because of the poor ...
Haoran Peng, Zengyun Jian, Feng Liu
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Microstructure and Hardness of Cu-22Sn-xC Alloys Fabricated by Powder Metallurgy [PDF]
Archives of Metallurgy and Materials, 2023 Cu-Sn alloys have been known as bronze since ancient times and widely used as electrode materials, ornaments, tableware and musical instruments. Cu-22Sn alloy fabrication by hot forging process is a Korean traditional forged high-tin bronze.
Gwanghun Kim +3 more
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Entropy, 2019 Recently, high-entropy alloy thin films (HEATFs) with nanocrystalline structures and high hardness were developed by magnetron sputtering technique and have exciting potential to make small structure devices and precision instruments with sizes ranging ...
Wei-Bing Liao +6 more
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Reviews on Advanced Materials Science, 2019 This review focuses on grain growth behaviors and the underlying mechanisms of bulk electrodeposited nanocrystalline nickel and nickel-iron alloys. Effects of some important factors on grain growth are described.
Ni Haitao +5 more
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Dynamic structure evolution and failure mechanism of nanocrystalline AlCo-CrFeNi
Cailiao gongchengThe molecular dynamics method was used to simulate the microstructure dynamic evolution， dislocation， and pore motion characteristics of AlCoCrFeNi high-entropy alloy at temperature 300 K and strain rate of 1×109 s-1， and the failure mechanism was ...
ZHANG Rong, QI Wenjun
doaj +1 more source