Results 41 to 50 of about 3,857 (239)

2D Co‐Assembly of Solid Acids Enables Stable Superprotonic Conduction Above 260°C

Advanced Functional Materials, EarlyView.
A two‐dimensional co‐assembly strategy integrates antimony phosphate and phosphotungstic acid nanosheets into free‐standing inorganic lamellar membranes with confined acid–acid interfaces. The resulting interfacial hydrogen‐bond network enables anhydrous proton conductivity exceeding 0.1 S cm−1 at 260°C and supports stable high‐temperature fuel‐cell ...
Qiuning Li, Kaiqiang He, Dehua Dong, Fanmengjing Wang, Xiangcheng Liu, Zhikao Li, Jacek J. Jasieniak, Paul A. Webley, Huanting Wang   +8 more
wiley   +1 more source

Additive Manufacturing of Ordered Polymer Nanostructures

Advanced Materials, EarlyView.
A new 3D printing strategy, Polymerization‐Induced Arrangement of Nanostructures with Order‐tunability (PIANO), enables the formation of ordered nanostructures in polymer materials by enhancing chain mobility during photopolymerization, overcoming the kinetic arrest that leads to disordered morphologies in the conventional Polymerization‐Induced ...
Di Wu, Kun Zhou, Kenny Lee, Yuan Xiu, Carol Hiu Wai Yan, Khoon S. Lim, Cyrille Boyer   +6 more
wiley   +1 more source

A comparative review of impact-induced failure mechanisms in monolithic and hybrid structures

Results in Engineering
In the face of high-strain-rate threats such as explosions, collisions, and high-velocity debris impacts, understanding the failure behavior of materials and structures under impact loading is critical for improving structural protection and service ...
Zhenhang Zhong, Jiacong Wang
doaj   +1 more source

Highly Entangled Bottlebrush Polymer Networks

Advanced Materials, EarlyView.
Bottlebrush polymers are difficult to entangle, enabling ultrasoft yet brittle networks. We report highly entangled bottlebrush elastomers that remain ultrasoft (∼1 kPa) yet stretch to ∼1800% and exhibit exceptional fatigue resistance. Their intrinsic fatigue strength—fatigue threshold normalized by modulus—surpasses that of highly entangled linear ...
Myoeum Kim, Baiqiang Huang, Shiwang Cheng, Li‐Heng Cai   +3 more
wiley   +1 more source

Modelling the brittle rock failure by the quaternion-based bonded-particle model in DEM

Rock Mechanics Bulletin
This paper presents an investigation of brittle rock failure by the quaternion-based bonded-particle model in discrete element method (DEM). Unlike traditional approaches that utilize Euler angles or rotation matrices, this model employs unit quaternions
Tao Zhao, Philip E.F. Collins
doaj   +1 more source

Can Elastomers Combine Stiffness, Toughness and Fatigue Resistance?

Advanced Materials, EarlyView.
This review studies how the molecular and macroscopic architecture of elastomers influence their mechanical properties including: stiffness, stretchability, toughness, fatigue resistance, and damping behavior. By linking the structure to performance, it proposes design principles for advanced elastomeric systems that combine mechanical properties ...
Eva Baur, Esther Amstad
wiley   +1 more source

Behavior of Prestressed Concrete Beam using Reactive Powder Concrete

Journal of Civil Engineering
The behavior of prestress pretension beams made of Reactive Powder Concrete (RPC) concrete with compressive strength above 120 MPa included in the Ultra High Performance Concrete (UHPC) classification was investigated to study the mechanical properties ...
Ignatius H. Sumartono, Heru Purnomo, Sidiq Purnomo, Feryandy Murdono   +3 more
doaj   +1 more source

Hybrid Amyloid–Boron Nitride Aerogels for Lightweight Sound Insulation

Advanced Materials, EarlyView.
Amyloid fibrils template the mild formation of boron nitride–rich hybrid aerogels with hierarchical porosity, enhanced BN‐like ordering, and fibril‐reinforced mechanics. These ultralight materials combine thermal stability with strong sound absorption and transmission loss, offering a sustainable bio‐assisted route toward lightweight acoustic shields ...
Mohammad Peydayesh, Andrin Lustgarten, Stefan Schoenwald, Enrico Boschi, My Hanh Bui, Ali Miserez, Felix Donat, Christoph R. Müller, Raffaele Mezzenga   +8 more
wiley   +1 more source

Simulation and experimental study on micro-cutting silicon carbide crystal with single grain diamond

Jin'gangshi yu moliao moju gongcheng
ObjectivesThe hardness of silicon carbide is second only to those of diamond, cubic boron nitride, and boron carbide, making its processing very difficult.
Yufei YANG, Xiang LI, Yan HE, Ming LIU, Zicheng XU, Xingjun GAO   +5 more
doaj   +3 more sources

Stress fields and deformational regimes within the limits of the Ukrainian part of the East Carpathians according to tectonophysical data

Геофизический журнал, 2019
The studies include the materials of the field tectonophysical observations of 2013―2018 and reinterpreted field data of 1990―1995. In order to determine the stress tensor structural-paragenetic and kinematic tectonophysical methods were used ...
A. V. Murovska, T. A. Amashukeli, V.I. Alyokhin   +2 more
doaj   +1 more source