Results 81 to 90 of about 224,947 (269)

II. Titanium Modified with Hydroxyapatite and Zirconium - Biological Properties

open access: yesČeská Stomatologie a Praktické Zubní Lékařství, 2007
Coated implants representing one of modern trends in implantology have been the subject of our investigation.After detailed technical tests of three different types of samples - titanium alloy TiAl6V4, titanium alloy covered with zirconium and titanium ...
M. Seydlová   +9 more
doaj  

Effect of dopant loading and calcination conditions on structural and optical properties of ZrO2 nanopowders doped with copper and yttrium

open access: yesMaterials Research Express
Undoped, Cu and/or Y doped ZrO _2 nanopowders were synthesized with Zr, Y, and Cu nitrates using a co-precipitation approach. Their structural and optical properties were examined regarding dopant content (0.1–8.0 mol.% of CuO and 3–15 mol.% of Y _2 O _3
L Khomenkova   +9 more
doaj   +1 more source

The effect of substitution rare earth metal on crystal structure and properties of quaternary La4-4xR4xGe3S12 (R – Er, Ho, Y, Dy, Tb) sulfide

open access: yesФізика і хімія твердого тіла
Establishing relationships between the distribution of atoms in a crystalline unit cell and the properties of phases is an important issue directly related to the application of functional materials.
O. Smitiukh, O. Marchuk
doaj   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

Effect of Microwave-Assisted Heat–Moisture Treatment on Structure, Physicochemical Properties and In Vitro Digestibility of Wheat Starch

open access: yesFoods
Wheat starch serves as a major dietary carbohydrate. Optimizing its structural and functional properties is essential for developing health foods. In the present study, microwave-assisted heat–moisture treatment (MHT) was applied to modify wheat starch ...
Liuyan Chen   +3 more
doaj   +1 more source

Role of Intrinsic Electron Trapping in Negative Charging of Amorphous Alumina

open access: yesAdvanced Functional Materials, EarlyView.
Intrinsic electron trapping in amorphous Al2O3 is examined using hybrid‐DFT models spanning a wide density range. Both spontaneous and thermally activated trapping are identified, with pronounced spontaneous localization in dense, partly crystallized structures.
Jack W. Strand   +5 more
wiley   +1 more source

Research Progress of the Effects of High-Pressure Treatment on Starch Structure and Properties

open access: yesShipin gongye ke-ji
As a new physical modification method, high-pressure treatment has been widely used in the processing of starch. In this paper, the effects of high-pressure treatment on the crystalline structure, gelatinization, retrogradation, digestion, thermal and ...
Yinshuang YANG, Zeshu DING
doaj   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

open access: yesAdvanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum   +5 more
wiley   +1 more source

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