Materiales

Materiales

Development of mullite-alumina ceramic shells for precision investment casting of single-crystal high-pressure turbine blades
- Alumina-mullite ceramic shell moulds were developed to cast single-crystal hollow high-pressure turbine blades (SX-HPTB). Mullite and fine alumina powders were used as fillers. Two colloidal...
Dielectric properties and negative permittivity performance modulated by dual fillers in CNTs/TiN/CaCu3Ti4O12 ternary composites
- Ceramic composites with negative permittivity have attracted widespread attention during the development of novel electromagnetic metamaterials. Herein, carbon nanotubes/TiN/CaCu3Ti4O12...
Fabrication of environment-friendly and flexible waterborne epoxy/PVP/h-BN composites for thermal interface material
- The solvent-based resins have been applied widely in the preparation of thermal interface material (TIM). However, the use of solvents is harmful to the environment and human health. To address...
Strength and durability characteristics of steel fiber-reinforced geopolymer concrete with addition of waste materials
06/08/2022 - In general, all countries in the world use ordinary Portland cement concrete for the construction purpose; this ordinary Portland cement (OPC) gives good mechanical properties and durability to...
Effects of chitosan molecular weight and deacetylation degree on the properties of collagen?chitosan composite films for food packaging
06/08/2022 - CBp and CNFs filler network structureAbstractCarbon nanofibers (CNFs) as new materials have been the focus of materials research, while being widely used in the processing of rubber composites. To...
Vulcanization behavior and thermal performance of peroxide?curable fluoroelastomer
05/08/2022 - Vulcanization of rubber using microwaves has the advantages of short time and energy saving, but the quality of vulcanization is low. Therefore, we predicted the reason from the dielectric factor and...
An Experimental Investigation of the Mechanical Behavior and Particle Crushing Characteristic of Volcanic Soil
06/08/2022 - Volcanic soil is a special soil that is well-known for its distinctive texture, vesicular nature, and particle fragility. The fragility characteristic of volcanic soil is the main factor affecting...
Synergistic enhancement of thermal conduction and microwave absorption of silica films based on graphene/chiral PPy/Al2O3 ternary aerogels
- Severe problems of heat dissipation and electromagnetic (EM) interference are quite detrimental to modern electronics, prompting researchers to develop advanced integrated materials of thermal...
Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing
04/08/2022 - In this study, the possibility of using sawdust, a by-product of primary wood processing, as a filler (WF) for rigid polyurethane (PUR) foams was investigated. The effects of the addition of 5, 10,...
Bimodal-Structured 0.9KNbO3-0.1BaTiO3 Solid Solutions with Highly Enhanced Electrocaloric Effect at Room Temperature
04/08/2022 - 0.9KNbO3-0.1BaTiO3 ceramics, with a bimodal grain size distribution and typical tetragonal perovskite structure at room temperature, were prepared by using an induced abnormal grain growth (IAGG)...
Insights on the role of alumina content and the filler effect on the sulfate requirement of PC and blended cements
- Understanding the mechanism controlling the sulfate requirement of blended cements is crucial for a successful deployment of these technologies towards a more sustainable industry. Particularly,...
Mechanical, electrical, thermal and tribological behavior of epoxy resin composites reinforced with waste hemp-derived carbon fibers
02/08/2022 - Abstract Short hemp fibers, an agricultural waste, were used for producing biochar by pyrolysis at 1000 °C. The so-obtained hemp-derived carbon fibers (HFB) were used as filler...
Sustainable approach toward novel poly(vinyl chloride) composite using calcite?rich waste particulates
02/08/2022 - In this study, flexible poly(vinyl chloride) (PVC) composites with two different types of fillers, precipitated calcium carbonate (PCC) and marble waste (MW) particulates, were prepared via melt...
A comparative study on mica waste?filled natural rubber foam composites made out of creamed and centrifuged latex
03/08/2022 - Foam rubber were prepared using two types of concentrated latex namely centrifuged latex and creamed latex. Their degradability studies along with selected physio?mechanical properties were...
Ternary Blends for Self-Compacting Mortars Production Composed by Electric Arc Furnace Dust and Other Industrial by-Products
03/08/2022 - This study is framed within the circular economy model through the valorisation of industrial by-products. This research shows the results of producing self-compacting mortars (SCMs) with electric...
The Present State of the Use of Waste Wood Ash as an Eco-Efficient Construction Material: A Review
03/08/2022 - A main global challenge is finding an alternative material for cement, which is a major source of pollution to the environment because it emits greenhouse gases. Investigators play a significant role...
Free Volume and Permeability of Mixed Matrix Membranes Made from a Terbutil-M-Terphenyl Polyamide and a Porous Polymer Network
03/08/2022 - A set of thermally rearranged mixed matrix membranes (TR-MMMs) was manufactured and tested for gas separation. These membranes were obtained through the thermal treatment of a precursor MMM with a...
Preparation and characterization of silica based nanoclusters as reinforcement for dental applications
27/07/2022 - Schematic diagram for experimental studiesAs composite resins become the most extensively utilized material in the field of cosmetic and restorative dentistry, several strategies to overcome dental...
Enhancing low velocity impact characteristics of glass fiber laminates by short fiber reinforcement—Failure evolution and damage mechanisms
30/07/2022 - For enhancing impact characteristics, woven glass fiber epoxy laminates are reinforced with short fibers. The 6?mm?long slender fillers, when added up to 4% in the matrix, exhibit no influence on the...
Experimental Study on the Optimization of Coal-Based Solid Waste Filling Slurry Ratio Based on the Response Surface Method
02/08/2022 - The large production and low comprehensive utilization rate of solid waste from coal power base affects the efficient and coordinated development of regional resources and the ecological environment....
New Aluminum Syntactic Foam: Synthesis and Mechanical Characterization
02/08/2022 - Metal matrix syntactic foams (MMSF) are advanced cellular materials constituted by a system of a minimum of two phases, in which a dispersion of hollow particles is embedded by a continuous metal...