Alkaline Earth Alloys
Alkaline Earth Alloys - Related Videos
12:02
Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique
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Cited by 5 •
2017
This protocol describes the measurement of the electromotive force of alkaline-earth elements in liquid metal alloys at high temperatures (723-1,123 K) to determine their thermodynamic properties, including activity, partial molar entropy, partial molar enthalpy, and phase transition temperatures, over a wide composition range.
06:52
Nanocrystalline Alloys and Nano-grain Size Stability
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2023
Source: Sina Shahbazmohamadi and Peiman Shahbeigi-Roodposhti-Roodposhti, School of Engineering, University of Connecticut, Storrs, CT Alloys with grain size less than 100 nm are known as nanocrystaline alloys. Due to their enhanced physical and mechanical properties, there is an ever-increasing demand to employ them in various industries such as semiconductor, biosensors and aerospace. To improve the processing and application of nanocrystalline alloys, it is necessary to develop close to 100%...
10:38
In Vivo Alkaline Comet Assay and Enzyme-modified Alkaline Comet Assay for Measuring DNA Strand Breaks and Oxidative DNA Damage in Rat Liver
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Cited by 17 •
2016
The alkaline comet assay measures DNA strand breaks in eukaryotic cells. By adding an Endonuclease III or human 8-oxoguanine-DNA-N-glycosylase digestion step, the assay can efficiently detect oxidative DNA damage. We describe methods for using these assays to detect DNA damage in rat liver.
11:14
Designing Silk-silk Protein Alloy Materials for Biomedical Applications
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Cited by 2 •
2014
Blending is an efficient approach to generate biomaterials with a broad range of properties and combined features. By predicting the molecular interactions between different natural silk proteins, new silk-silk protein alloy platforms with tunable mechanical resiliency, electrical response, optical transparency, chemical processability, biodegradability, or thermal stability can be designed.
02:37
Conditions on Early Earth
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2020
Around 4 billion years ago, oceans began to condense on earth while volcanic eruptions released nitrogen, carbon dioxide, methane, ammonia, and hydrogen into the primordial atmosphere. However, organisms with the characteristics of life were not initially present on earth. Scientists have used experimentation to determine how organisms evolved that could grow, reproduce, and maintain an internal environment.In the 1920s, the scientists Oparin and Haldane proposed the idea that simple biological...
FAQs
Alloy formation can produce either a solid solution, in which different atoms occupy positions within a common crystal structure, or an intermetallic phase, which has its own ordered structure. These alternatives change how atoms bond and arrange themselves. Consequently, the resulting material can show different strength, density, corrosion behavior, and thermal properties even when its elements are similar.
Defect populations are important because imperfections in a crystal alter how the structure responds to applied conditions. In alkaline earth alloys, their effects are connected with bonding and crystal structure, so they can influence strength and other performance measures. Evaluating defects alongside composition helps explain why two alloys containing related metals may not behave identically.
Calcium and strontium additions are useful when alloy designers want to change more than composition alone. In magnesium-based systems, these elements can tailor casting behavior and microstructure, the fine structural arrangement formed during processing. Those changes provide a chemistry-based route for adjusting how the alloy forms and how its final material properties emerge.
Magnesium-based alkaline earth alloys are especially valuable where low density matters, because reduced mass supports lightweight transportation and structural components. Beryllium-containing systems serve a different specialized role: they combine stiffness with low mass rather than being emphasized primarily for lightweight design. Selecting between these material families therefore depends on the performance priority being targeted.
The essential formation sequence is mixing the selected metals through melting and then allowing the material to solidify. During this sequence, the alloy develops either a solid solution or intermetallic phases, while its crystal structure and defect population become important. Examining the resulting structure helps connect the melting and solidification process with final material properties.
Researchers choose magnesium-based alloys when low density is a central requirement, especially for transportation or structural components. Their usefulness is not determined by density alone: crystal structure, bonding, defects, corrosion behavior, and thermal properties also affect performance. Chemistry and materials science therefore examine both elemental composition and the structures produced during melting and solidification.
Beryllium-containing systems require careful handling while offering a specialized combination of stiffness and low mass. This makes them distinct from the magnesium-focused examples associated with lightweight transportation and structural components. In a chemistry or materials-science setting, their composition and performance must be considered together with the handling requirements identified for the system.