Results 101 to 110 of about 224,961 (312)

Glass formation in K2SO4-CaO-P2O5 system [PDF]

open access: yes, 2003
The glass forming region in K2SO4-CaO-P2O5 ternary system is identified, the coefficient of thermal expansion, glass transition temperature and refractive index of the synthesised glasses has been determined and the respective contours are plotted in the
Sood Biswas, Nisha   +2 more
core  

Glass Transition and Thermal Stability of Hard Magnetic Bulk NdAlFeCo Metallic Glass [PDF]

open access: yes, 2002
Glass transition and thermal stability of bulk Nd60Al10Fe20Co10 metallic glass were investigated by means of dynamic mechanical thermal analysis (DMTA), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electronic microscopy ...
夏雷   +6 more
core   +1 more source

Variable Stiffness Flexure Structures Enabled by Phase‐Change Gallium and Adhesive Interfacial Locking for Soft Robotic Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim   +2 more
wiley   +1 more source

Thermal expansion accompanying the glass-liquid transition and crystallization [PDF]

open access: yes, 2015
We report the linear thermal expansion behaviors of a Zr-based (Vitreloy 1) bulk metallic glass in its as-cast, annealed and crystallized states. Accompanying the glass-liquid transition, the as-cast Vitreloy 1 shows a continuous decrease in the thermal ...
Jiang F   +9 more
core   +1 more source

Softening Behavior of Black Sweet-Bamboo (Dendrocalamus asper Backer) at Various Initial Moisture Contents

open access: yesWalailak Journal of Science and Technology, 2011
Softening behavior of bamboo (Dendrocalamus asper Backer) at various initial moisture contents (0 %, 13 %, 37 % and 60 %) was investigated by means of dynamic mechanical thermal analysis (DMTA).
Nirundorn MATAN   +2 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Novel bioactive glass coating for dental implant [PDF]

open access: yes, 2012
PhDWith an increasingly ageing population the requirement for titanium implants will grow. A major challenge is to speed up the rate and strength of osseo-integration.
Al-Noaman, Ahmed
core  

Discontinuous Shear Modulus Determines the Glass Transition Temperature

open access: yesPhysical Review X, 2015
A solid—amorphous or crystalline—is defined by a finite shear modulus while a fluid lacks such. We thus experimentally investigate the elastic properties of a colloidal glass former near the glass transition: Spectroscopy of vibrational excitations ...
Christian L. Klix   +2 more
doaj   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

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