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... Selective laser melted (SLMed) CoCrMo alloy specimens were subjected to solid solution and aging treatments, and then, their microstructure evolution and mechanical properties were systematically investigated. It is found that the SLMed CoCrMo sample mainly consists of a metastable γ phase with a parallel orientation between [011]γ and [2[Formula: see text]0]ε. Phase transformation has occurred on ...
... Metal halide perovskites have gained huge research interest within few decades due to their optoelectronic applications. Recently, inorganic metal halide perovskites CsPbX₃ (X = Cl, Br, I) has shown the improved stability with promising optical and electrical properties. We report the enhancement of PL intensity and the extension of carrier lifetime from strained CsPbBr₃ microwires in air environm ...
tensilestrength, etc ; alloys; graphene; microscopy; temperature; Show all 5 Subjects
Abstract:
... Laminated multi-layer graphene/Cu–Al–Mn composites were prepared via packaged hot roll bonding process for the first time. Microscopic observation shows that the grains in the Cu–Al–Mn layers are remarkably refined. Multi-layer graphene films intermittently disperse at the interfaces between Cu–Al–Mn layers. Some small fragments of multi-layer graphene films are squeezed into the Cu–Al–Mn layer, a ...
tensilestrength, etc ; Urena lobata; epoxides; polymers; Show all 4 Subjects
Abstract:
... In the present research work, chemically modified Urena lobata (UL) fibers have been reinforced in epoxy resin matrix for fabrication of natural fiber polymer composite. The extracted fibers have been chemically modified with different concentration of NaOH (i.e. 4%, 5%, 6%, and 7%) and characterized by Scanning Electron Microscopy (SEM) and infrared spectroscopy (FTIR). From the tensile test resu ...
tensilestrength, etc ; alloys; graphene; nanocomposites; synergism; titanium; Show all 6 Subjects
Abstract:
... Strong interfacial bonding is the primarily crucial issue in titanium matrix composites (TMCs). In this study, three-dimensional (3D) network structured Ti6Al4V (TC4) matrix TMCs with 0.15 wt% few-layer graphene (FLG) were fabricated by high pressure spark plasma sintering (SPS, 200–300 MPa) at 850 ℃, 900 ℃ and 950 ℃, correspondingly producing three types of interface configuration with in-situ Ti ...
tensilestrength, etc ; crosslinking; energy; ligands; rubber; zinc; Show all 6 Subjects
Abstract:
... The chemical modification of technical rubbers to fine-tune their properties is a subject of current interest. Here, we report a facile approach for the straightforward introduction of non-covalent cross-links based on metal–ligand complexes into styrene-butadiene rubber (SBR). This was achieved by grafting the multidentate 2,6-bis(1′-methylbenzimidazolyl)-pyridine (Mebip) ligand to the polymers’ ...
tensilestrength, etc ; amination; environment; methylcellulose; nanocrystals; viscosity; Show all 6 Subjects
Abstract:
... Higher tensile and bursting strength are paramount concerns in paper-based packaging materials. Herein, the aminated cellulose nanocrystal (A-CNC) was synthesized by the amination reactions firstly, and the base paper was reinforced via coating hydroxypropyl methylcellulose (HPMC) and A-CNC. The surface morphology and tensile strength of the coated composite paper were characterized and the rheolo ...
tensilestrength, etc ; additives; composite materials; delamination; methodology; solutions; Show all 6 Subjects
Abstract:
... An additive laminate applied to the free-edges of composite laminates is proposed to stop the development of delamination. Numerical analyses were conducted to find the optimum additive binding layup and the experimental results proved that the free-edge delamination was successfully suppressed. When it was used to bind the edges of a [(202/-202)2]s angle-ply laminate, the tensile failure strain a ...
tensilestrength, etc ; Musa; bananas; cellulose; fabrics; silk; thermogravimetry; Show all 7 Subjects
Abstract:
... Banana silk, a fiber extracted from the pseudo-stem of banana plant, is used widely for various applications. Same way, the bracts of banana inflorescence contains substantial quantities of fibers, which could be used in various textile applications on account of its physical and chemical properties. The fibers are found to have high cellulose content of 56.48% and low wax content of 1.05%. The de ...
tensilestrength, etc ; absorption; bamboos; energy; epoxides; furnaces; China; Show all 7 Subjects
Abstract:
... Carbonized ramosissima nanoparticles (CRN) were prepared from ramosissima, a special plant in Ningxia, using a tube furnace and a ball mill. 0 wt%, 0.25 wt%, 0.5 wt%, 0.75 wt% and 1 wt% CRN were added to the resin. The composite was prepared by vacuum assisted resin perfusion (VARI) process. The effects of CRN content on the tensile, shear and low-speed impact properties of bamboo fiber epoxy resi ...
tensilestrength, etc ; carbon; ceramics; energy; transmission electron microscopes; Show all 5 Subjects
Abstract:
... The surface of continuous carbon fibers (Cf) was modified with γ-Al₂O₃, anatase-TiO₂ and yttria stabilized zirconia (YSZ) coatings in sol-gel route, and denoted by Al₂O₃@Cf, TiO₂@Cf and YSZ@Cf, respectively. Following, Cf/Mg composites were prepared using vacuum pressureless infiltration processing. Except for coatings, the others preparation process parameters were same. Independent of the volume ...
tensilestrength, etc ; diamines; green chemistry; schiff bases; thermoplastics; Show all 5 Subjects
Abstract:
... Thermosets are important commodity polymeric materials, but they are rarely biorenewable and recyclable. Although some previously reported bio-based aromatic thermosets with a high aromatic content have good thermal/mechanical properties, the mechanical properties of fully bio-based vitrimers are relatively poor owing to low aromatic contents. To address this important issue, vanillin-based dialde ...
tensilestrength, etc ; crosslinking; deformation; durability; hydrogen; liquid crystals; Show all 6 Subjects
Abstract:
... Liquid crystal elastomers (LCEs) with large deformation under external stimuli have attracted extensive attention in various applications such as soft robotics, 4D printing, and biomedical devices. However, it is still a great challenge to reduce the damage to collimation and enhance the mechanical and actuation properties of LCEs simultaneously. Here, we construct a new method of a double cross-l ...
tensilestrength, etc ; hydroxyapatite; nanocomposites; polyurethanes; transmission electron microscopy; Show all 5 Subjects
Abstract:
... The present study evaluates the effect of adding different contents of hydroxyapatite (HA) nanoparticles on the mechanical properties of poly(lactic acid)/thermoplastic polyurethane (PLA/TPU) (90/10, 75/25, and 50/50 w/w) blends. Various theoretical models were utilized to describe the observed mechanical behavior of the prepared blend nanocomposites. Scanning electron microscopy revealed that 75/ ...
tensilestrength, etc ; carbon nanotubes; cold; extrusion; graphene; titanium; Show all 6 Subjects
Abstract:
... To keep high structural integrity of carbon nanotubes (CNTs) in titanium (Ti), sintering and sintering-based consolidation processes were widely applied to fabricate CNTs/Ti composites. However, sintering processes were faced with the dilemma between insufficient densification at low sintering temperatures and excessive CNTs-Ti reaction at high temperatures. In this study, a sintering-free process ...
tensilestrength, etc ; castor oil; crosslinking; piperazine; urea; urethane; Show all 6 Subjects
Abstract:
... Castor oil (CO)-derived polyurethanes (PUs), denoted CPUs, are drastically limited because they cannot be reprocessed, reshaped, or recycled and because they show low strength, poor toughness, and insufficient functionality due to their permanently cross-linked structure with a high cross-link density and a soft backbone. Herein, we developed novel reversible piperazine–urea bonds (PaUBs) from ine ...
tensilestrength, etc ; Cannabis sativa; epoxides; hemp; particleboards; polymers; Show all 6 Subjects
Abstract:
... This work investigated the impact that the processing of hemp (C. sativa L.) fibre has on the mechanical properties of unidirectional fibre-reinforced epoxy resin composites loaded in axial tension, and particleboard reinforced with aligned fibre bundles applied to one surface of the panel. For this purpose, mechanically processed (decorticated) and un-processed hemp fibre bundles, obtained from r ...
tensilestrength, etc ; heat stability; hydrogels; konjac mannan; lithium; polyaniline; Show all 6 Subjects
Abstract:
... The development of bio-based conductive hydrogel has become the research frontier of flexible sensors. However, it is a challenge to prepare a simple method to prepare bio-based conductive hydrogel with excellent stability, tensile strength, and conductivity. Here, we show a simple strategy to prepare conductive, stretchable, and stable hydrogel (KKLN). The KKLN consists of the conductive polyanil ...
tensilestrength, etc ; bioactive properties; cell adhesion; hydrogen; hydroxyapatite; polymerization; Show all 6 Subjects
Abstract:
... The poly(l-lactide) (PLLA)/hydroxyapatite (HAP) composite scaffold is expected to combine the favorable compatibility and processability of PLLA with the excellent bioactivity and osteoconductivity of HAP. Unfortunately, the poor interfacial bonding between PLLA and HAP leads to a deterioration in mechanical properties. In this study, poly(d-lactide) (PDLA) was grafted onto the surface of HAP nano ...
tensilestrength, etc ; adhesion; carbon nanotubes; crosslinking; hydrogen; imines; siloxanes; Show all 7 Subjects
Abstract:
... The facile fabrication of robust, self-healable, and re-dissolvable polysiloxane elastomers for use in recyclable flexible devices is highly desired yet quite a challenge. Herein, a strategy involving dual-crosslinking side chains with an asymmetric chain structure is proposed to overcome the related challenges. Dual crosslinking is readily undergone between diethylenetriamine-functionalized polys ...