Catalogue Search | MBRL
Are you sure you want to remove the book from the shelf?
{{itemTitle}}
50,200
result(s) for
"Materials Experiments."
Sort by:
Joining materials in my makerspace
\"Describes how materials can be joined together to create one object with many individual pieces, or how one object made of many pieces cna be taken apart to make new objects. Readers are provided with strategies to start their own creative projects using the ideas they have learned. Along the way, tips and helpful hints guide children on how to brainstorm and solve problems working as a team.\"-- Provided by publisher.
Book
Experimental techniques in materials and mechanics
Bridging the gap between lecture and lab, this text provides a detailed yet easy-to-follow treatment of various techniques useful for characterizing the structure and mechanical properties of materials. With an emphasis on techniques most commonly used in laboratories, the book enables readers to understand practical aspects of the methods and derive the maximum possible information from the experimental results. Background information and essential concepts are explained in an easy-to-understand way. Along with numerous illustrations and micrographs, each chapter includes worked-out examples, lab experiments, exercises, and references.
eBook
Experiments with materials
Can you mix two or more materials together? What is a property? What is the difference between natural and synthetic materials? Read and Experiment is an engaging series, introducing children to scientific concepts. Explore the world of materials with clear text, real-world examples and fun, safe step-by-step experiments. This book brings the science of materials and properties to life, explaining the concepts and encouraging children to be hands-on scientists.
Book
Preparation and application conductive concrete from iron tailings to the teaching reform in engineering materials courses
The conversion of iron tailings, a mining solid waste, into conductive concrete aligns with green engineering and supports the development of intelligent construction materials. This study employed a four-factor, four-level orthogonal test to investigate the effects of water-binder ratio, silica fume content, sand-binder ratio, and carbon fiber content on the density, compressive strength, and resistivity of carbon fiber-reinforced iron tailings conductive concrete (CF-ITCC). It is found that the compressive strength of CF-ITCC is linearly positively correlated with the density, and the correlation coefficient is 0.87. When the density ≥ 2300 kg/m
3
, the strength is generally more than 30 MPa, up to 44.7 MPa. The volume content of carbon fiber > 0.25% gives it excellent conductivity, with a minimum of 616 Ω cm. The sand-binder ratio dominates the density and strength, and the carbon fiber content dominates the resistivity, and the ratio combination of minimum density, maximum strength and optimal conductivity is determined. Microscopically, the hydration products C–S–H gel and calcium hydroxide enhance the strength, and carbon fiber and iron tailings form a conductive network to reduce the resistance. The material has the application value of solid waste resource utilization and intelligent construction, and promotes the innovative practice of engineering materials teaching through interdisciplinary experimental system. This research presents a novel approach for utilizing iron tailings and improving concrete conductivity. Additionally, a composite engineering materials experiment system integrating materials science, construction technology, and environmental engineering was developed. This system expanded traditional teaching frameworks and supported teaching reform by enhancing students’ understanding of engineering materials theory and strengthening their innovative and practical abilities. The multidisciplinary paradigm demonstrates strong application value in ecological governance and engineering education reform.
Journal Article
Body care chemistry
Chemistry is a big part of our lives. It is thanks to chemistry that we have medicines to treat illness, fuel to power vehicles, clothes to wear, and food to eat. Also thanks to chemistry we have products to look after our bodies, including soap, toothpaste, and shampoo.
Book
Effect of the Al, Cr and B elements on the mechanical properties and oxidation resistance of Nb-Si based alloys: a review
Nb-Si based alloys are considered as a potential candidates to substitute for Ni-based super alloys. However, its poor mechanical properties and high temperature oxidation resistance greatly limit its development and application. Alloying can effectively improve the mechanical properties and oxidation resistance of Nb-Si based alloy. In this work, the effects of Al, Cr, B elements addition on the mechanical properties and oxidation resistance of niobium-silicon ternary alloys are summarized. The microstructure, oxidation behavior and mechanical properties of various alloys were analyzed and compared. Moreover, the fracture and oxidation failure mechanism of the alloys are also summarized. Finally, the development trend of ternary Nb-Si based oxidation-resistant alloys in the future has been prospected.
Journal Article
Ultimate slime : totally borax free!
The Instagram star presents Borax-free recipes for making slime that feature a variety of color and textures, including bubbly, soft serve, gem, glitter, and jiggly slime.
Book
Experimental and Numerical Study of Combined High and Low Cycle Fatigue Performance of Low Alloy Steel and Engineering Application
The fatigue behaviors of metals are different under different in-service environment and loading conditions. This study was devoted to investigating the combined effects of high and low cycle fatigue loads on the performance of the low alloy steel Q345. Three kinds of experiments were carried out, including the pure high cycle fatigue (HCF) tests, the pure low cycle fatigue (LCF) tests, and the combined high and low cycle fatigue (HLCF) tests. The prediction formulae were proposed for the combined high and low cycle fatigue failure. Scanning electron microscopy (SEM) and stereo microscope were used to analyze the microstructure and fracture morphology due to different fatigue loads. Case study on the combined high and low cycle fatigue damage of a steel arch bridge was carried out based on the FE method and the proposed formula. The results show that the LCF life decreases evidently due to the prior HCF damages. The HLCF fracture surface is relatively flat near the crack initiation side, and rugged at the other half part. The fatigue damages at the bridge joints increase significantly with consideration of the pre-fatigue damages caused by traffic load. In the 100th anniversary of service, the fatigue damage index without considering the HCF pre-damage is only about 50% of the coupled damage value.
Journal Article
The slime book
Play, poke, push, pull, and pop over 30 slime recipes, all of which use inexpensive, accessible, and safe everyday products.
Book
Investigating the influence of pressure on SrFeO3 and SrMnO3 ferromagnets for high-pressure spintronic devices: a comparative DFT overview
In this work, we have performed a comprehensive investigation of the structural, electronic magnetic, mechanical and thermal properties of the compounds SrFeO
3
and SrMnO
3
under pressure using density functional theory. In structural and mechanical properties, we have found that compounds are stable in the cubic phase by performing stability tests of tolerance factor and mechanical stability criteria, respectively. The bulk modulus, shear modulus and young modulus are observed to increase with pressure, and this illustrates that compounds become more stiff and rigid. The internal strain factor is also observed to decrease with an increase in pressure which is the key parameter in explaining bond bending or bond stretching ability in the material. In electronic properties, we have investigated the electronic band gap and density of states of the compounds in detail. While in magnetic properties, ferromagnetic nature of the compounds is observed throughout the pressure range. The majority of bonds in the studied compounds are ionic according to Cauchy criteria. The superplastic deformation is also calculated using elastic constants which illustrates materials resistance to occur plastic deformation at high pressure in the cubic phase. Our calculated results at 50 GPa are not discussed previously in theoretical or experimental findings. All calculated results at ambient conditions have matched well with available theoretical and experimental results. Our results have indicated all studied compounds as half-metallic in nature which increases the chances of materials to be used in spintronic devices.
Journal Article