Results 151 to 160 of about 104,890 (283)

Silicon allotropes by large‐volume high‐pressure techniques: crystal growth mechanisms, phase diagrams and hexagonal nanostructured Si‐6H by in situ X‐ray diffraction and computational methods

Acta Crystallographica Section B, Volume 82, Issue 3, Page 280-298, June 2026.
In situ X‐ray diffraction is used for exploring Si crystallography and for studying phase‐transformation mechanisms in elemental Si and Na–Si systems. We present original results of hexagonal silicon, Si‐6H and a critical analysis of the past‐decade discoveries of silicon Si‐4H and Si24 using large‐volume high‐pressure techniques.Metastable allotropes ...
Alexandre Courac, Yann Le Godec
wiley   +1 more source

Remineralization of early caries lesions by calcium hypophosphite in vitro: a surface microhardness study. [PDF]

BDJ Open
Amaechi BT, Vohra R, Abdollahi S, Yang K, Obiefuna AC, Schulze Zur Wiesche E, Enax J.   +6 more
europepmc   +1 more source

Dentifrices for preventing erosive tooth wear: An in vitro comparative study

European Journal of Oral Sciences, Volume 134, Issue 3, June 2026.
Abstract Erosive tooth wear is a progressive condition that compromises enamel structure and requires preventive strategies. This in vitro study aimed to compare the protective effects of fluoride‐based dentifrices containing various bioactive agents on sound enamel subjected to simulated erosive–abrasive challenges.
Juliellen Luiz da Cunha, Anderson Gomes Forte, Elizabeth Barreto Galvão de Souza, Marcel Alves Avelino de Paiva, Débora Soares Bacelar, Fábio Correia Sampaio, Andressa Feitosa Bezerra de Oliveira   +6 more
wiley   +1 more source

Constitutive behaviour and microstructural evolution in thermally deformed Al-Zn-Mg alloy. [PDF]

Sci Rep
Harikrishna K, Nithin A, Manohar G, Nagaraju KVV, Bukate BB, Bhowmik A.   +5 more
europepmc   +1 more source

Physicochemical and remineralisation properties of calcium silicate and glass ionomer cements applied in simulated caries‐affected dentine

European Journal of Oral Sciences, Volume 134, Issue 3, June 2026.
Abstract Calcium silicate‐based and glass ionomer cements are often used in caries‐affected dentine. This study investigated the remineralising and physicochemical properties of two calcium silicates and a glass ionomer cement. Human molars with Class I cavities were subjected to pH cycling to simulate caries lesions.
Monika Lukomska‐Szymanska, Mateusz Radwanski, Stella Helen Constantinidou, Augusto R. Elias Boneta, Umer Daood, Kharouf Naji, Filippo Cardinali, Salvatore Sauro   +7 more
wiley   +1 more source

The reinforcing effect of anti-caries treatments on acidic challenge resistance of irradiated enamel. [PDF]

PLoS One
Shafiei F, Khaleghi I, Ansari M, Mirzaei E, Tavangar MS.   +4 more
europepmc   +1 more source

Influence of tooth bleaching on dental enamel microhardness: a systematic review and meta‐analysis

Australian dental journal, 2017
J. Zanolla, Abc Marques, DC da Costa, A. D. de Souza, M. Coutinho   +4 more
semanticscholar   +1 more source

Structural Role and Mechanical Impact of Zirconia in Lithium Disilicate Glass

Journal of the American Ceramic Society, Volume 109, Issue 6, June 2026.
The effect of ZrO2 addition on the structure, topology, and mechanical properties of lithium disilicate glass is investigated using topological constraint theory (TCT), molecular dynamics simulations, and experiments. Zirconia acts as a network former, increasing packing density, rigidity, hardness, and elastic modulus.
Bahareh Kheilnezhad, Hongyeun Kim, Kiera Palmer, Scott Kroeker, Seong H. Kim, John C. Mauro, Maziar Montazerian   +6 more
wiley   +1 more source

Comparative Analysis of Physical and Mechanical Properties of Acrylic Resins for Interim Fixed Prostheses Under Thermocycling Aging. [PDF]

Bioengineering (Basel)
da Silva EVF, Ortiz CLE, Gomes MS, Condor WJAB, Santos KF, Bezerra SJC, Cesar PF, Bastos-Bitencourt NA, Bitencourt SB, Léon BLT.   +9 more
europepmc   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, Volume 28, Issue 10, 20 May 2026.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +1 more source