Search or ask a question

What influenc has the compressebility in powders with magnesimstearat?

Compressibility

Solid solution strengthening

Microcrystalline cellulose

Best insight from top research papers

The compressibility of powders, such as those containing magnesium stearate, is influenced by various factors like particle morphology, mechanical properties, and compaction conditions. Studies have shown that the compressibility of powders is affected by the compaction pressure, with equations describing the densification process accurately. Additionally, the compressibility of powders can be quantified using equations that consider the porosity at different pressures, reflecting the powder's behavior under compression . Furthermore, the compressibility of mixed valence iron oxides, like magnesioferrite, varies with pressure, demonstrating non-linear changes in bulk moduli across different compositions. Understanding the compressibility of powders with magnesium stearate is crucial for optimizing tablet formulation and manufacturing processes.

Answers from top 4 papers

PDF

Open Access

More filters

Papers (4)	Insight
Journal Article•DOI Compressibility of powders N. V. Andreeva, I. D. Radomysel'skii, N. I. Shcherban - Show less +2 more 01 Jun 1975-Powder Metallurgy and Metal Ceramics 20 Citations	Not addressed in the paper.
Open access•Journal Article•DOI Compressibilities along the magnetite–magnesioferrite solid solution Caterina Melai, Tiziana Boffa Ballaran, Laura Uenver-Thiele, A. Kurnosov, A. I. Chumakov, Dimitrios Bessas, Daniel J. Frost - Show less +6 more 01 Dec 2022-Physics and Chemistry of Minerals	Not addressed in the paper.
Journal Article•DOI Influence of powder properties on compressibility of prealloyed atomised powders Eduard Hryha, Eva Dudrova, Sven Bengtsson - Show less +2 more 01 Dec 2008-Powder Metallurgy 17 Citations	Not addressed in the paper.
Journal Article•DOI Multiple compression of powders in a tablet press. N. A. Armstrong, N. M. A. H. Abourida, L. Krijgsman - Show less +2 more 12 Apr 2011-Journal of Pharmacy and Pharmacology 12 Citations	Not addressed in the paper.

My columns

Related Questions

What are the mechanical properties of compressed earth bricks?5 answersCompressed earth bricks (CEBs) have been studied for their mechanical properties in several papers. The addition of waste wood sawdust as an additive to CEBs resulted in improved compressive strength, with a 22% gain observed when smaller additive sizes were used. Numerical simulations in ABAQUS were used to analyze the mechanical behavior of CEBs, including their elastic phase, plastic regime, and rupture. The incorporation of coal aggregates (CA) in CEBs led to a decrease in specific weight and compressive strength, but an increase in thermal conductivity. CEBs incorporating cotton waste ash showed acceptable compressive strength and improved thermophysical properties, including a decrease in heat capacity and thermal conductivity. The addition of palm fibers and glass fibers to CEBs resulted in increased density, speed of sound transmission rate, and stress values, enabling the determination of load limits for walls built with these bricks.

What is the important of the compressibility and strength of clay in landfill affect the performance of the lindfill?5 answersThe compressibility and shear strength of clay in landfills are important geotechnical properties that directly affect the performance of the landfill. The addition of biochar to clay liners has been found to improve the consolidation and shear strength properties of the material, with an optimum improvement observed at a biochar content of 5%. Another method to increase the shear stability of compacted clay liners is by adding zeolite as a stabilizer material, which has been shown to increase the friction angle of the clay. Geogrids have also been used to bolster the shear strength of landfill clay cover barriers, preventing the development of tensile cracks and increasing load-carrying capacity. Natural clay liners have been found to attenuate leachate pollutants through sorption, redox transformations, biodegradation, precipitation, and filtration, making them suitable for landfill liners. Overall, the compressibility and strength of clay in landfills play a crucial role in ensuring the effectiveness and stability of the landfill containment system.

What is compression factor in physical chemistry?5 answersThe compressibility factor in physical chemistry refers to the measure of nonideality of real gases. It is determined by analyzing the data obtained from measuring the compressibility of gases at constant temperature and varying pressure. The compressibility factor is calculated by comparing the values of the second virial coefficient obtained from the experiment with the literature values. The experiment demonstrates that real gases do not behave ideally and exhibit deviations from ideal gas behavior.

What is the equation of compression ratio?2 answersThe equation for compression ratio is C'c = 0.003wL.

What is the relationship between solid state hydrogen storage and hydrogen compression?5 answersSolid state hydrogen storage and hydrogen compression are closely related in the context of hydrogen storage methods. Solid state hydrogen storage involves storing hydrogen in solid materials that undergo exothermic reactions when hydrogen is stored and endothermic reactions when hydrogen is released. On the other hand, hydrogen compression is the process of compressing hydrogen gas to increase its density and facilitate storage. In the case of solid state hydrogen storage, the compression device plays a crucial role in compressing the hydrogen received from the supply device before it is stored in the storage device. Additionally, heat generated from the storage device is transferred to the compression device, improving energy efficiency by efficiently reusing heat. Therefore, solid state hydrogen storage and hydrogen compression are interconnected processes that contribute to the overall efficiency and effectiveness of hydrogen storage systems.

How are hot press compresses used?5 answersHot press compresses are used in various applications. One use is for attaching plates poor in heat conduction capacity, where heat sources and heating wires are used to improve heat conduction efficiency and hot press efficiency. Another use is for pressing buckling plates, where a steam assembly and a pressing structure are used to bend the buckling plate and form a structure with an L-shaped section, reducing the need for trimming and improving production efficiency. Hot press compresses can also be used in hot-press forming, where mechanical arms are used to take and place products, improving efficiency and ensuring that hot presses with abnormal temperatures do not affect the quality of the products. Additionally, hot press devices can be used for hot-press bonding of metal pieces and plastic components, achieving automatic bonding at stable pressure and temperature and improving the qualification rate of products. In wood-based plate processing, hot press compresses can be used with splints and adjusting screws to firmly fix panels and cool them quickly after hot pressing, reducing process time.

See what other people are reading

What are the factors that affect the moisture content during the study of stability?

The factors influencing moisture content stability during stability studies include the environment's relative humidity (RH), water content, temperature, and the moisture history of the samples. Excipients in tablet formulations can have RH-dependent or RH-independent moisture content, impacting drug stability. In crude oil emulsions, water content and temperature play crucial roles in emulsion stability, with higher water concentrations leading to decreased stability. For soil shear strength, the water content significantly affects stability, especially in clayey soils, where shear strength may not decrease as expected with increased water content. In high-fill compacted loess embankments, water content influences density, dry density, cohesion, and friction angle, affecting embankment stability, which can be improved with geogrid layers.Energy potential of rice husk charcoal?

Rice husk charcoal exhibits significant energy potential through various applications. It can be utilized for energy generation, biochar production, and as an alternative fuel source. Studies have shown that rice husk combustion can generate electricity and thermal energy with high efficiency, making it economically feasible for energy production. Additionally, rice husk charcoal can be further processed into briquettes, offering an alternative energy source with varying combustion rates based on compaction pressure. Moreover, the continuous carbonization of rice husk on a downdraft gasifier yields high-quality charcoal suitable for charcoal briquette production and organic fertilizer manufacturing, showcasing its energy conversion efficiency and thermal properties. Furthermore, rice husk charcoal can be utilized as an adsorbent to treat urine, demonstrating its versatility in energy and environmental applications.What is the degree celsius to convert walnut shell to walnut ash?

To convert walnut shell to walnut ash, the pyrolysis temperature plays a crucial role. Research indicates that walnut shells are best pyrolyzed at different temperatures depending on the desired application. Walnut shells are suitable for use as alternative fuels when pyrolyzed at 300 °C for soil fertilizers, while pistachio shells are optimal at 350 °C and peanut shells at 550 °C. Additionally, the pyrolysis temperature for bio-char production from walnut shells is recommended to be 600 °C for improved High Heating Value and carbon content. Furthermore, the optimal carbonization process for walnut shells involves a final temperature of 324.7 °C, with the carbonization reaction intensifying at a heating rate of about 10 °C min−1.What is the relationship between cohesive energy density and gel system?

The relationship between cohesive energy density (CED) and gel systems is intricate and multifaceted. CED plays a crucial role in determining the solubility of nonpolar compounds in different liquids, as seen in the comparison between light water (H2O) and heavy water (D2O). Additionally, CED is closely related to internal pressure (Pi) in various liquid systems, especially in polymers where CED cannot be directly measured but can be inferred through scaling with surface tensions. Furthermore, the concept of internal pressure being correlated with CED has been successfully applied to identify energy and structural changes in alkanols, showcasing how molecular structure impacts the cohesive properties of the liquid system. Overall, CED influences the behavior of gel systems through its impact on solubility, internal pressure, and structural changes within the liquid medium.What are the optimal values for valid weight and number of swaths in coverage path planning in agriculture?

In coverage path planning for agriculture, optimal values for valid weight and number of swaths play a crucial role in efficient field coverage. Various methods have been proposed to address this issue. One approach involves dividing the agricultural field into convex polygonal areas to distribute them optimally among robots, generating an optimal coverage path for each area, and determining trajectories using motion dynamics. Additionally, the use of heterogeneous UAVs with a moving ground platform has been suggested to reduce flyby costs by 10% compared to traditional methods, emphasizing the importance of considering equipment heterogeneity in planning. Furthermore, methods to compute disturbed soil for different types of vehicles have been explored, showcasing the significance of soil compaction in defining coverage paths in agriculture.How are dredged sediments composed?

Dredged sediments are composed of cohesive sediment particles with varying amounts of sand, organic matter, and other components. These sediments can contain high levels of nutrients, metals, and organic compounds, making them suitable for various beneficial uses such as soil conditioning and construction materials. The chemical and mineralogical compositions of dredged sediments typically include oxides like SiO2 and CaO3, along with mineral phases such as quartz, calcite, feldspar, chlorite, kaolinite, muscovite, and halite. Additionally, the physical properties of dredged sediments, including plasticity, organic content, and salinity, play a crucial role in determining their suitability for specific applications like fired brick manufacturing. Overall, dredged sediments offer a potential resource with diverse compositions that can be repurposed for sustainable practices.What is the definition of holocellulose?

Holocellulose refers to a composite material derived from cellulose fibers, often with enhanced properties for various applications. It is typically prepared by processing cellulose fibers through methods like mechanical treatment, acetylation, or blending with other materials like carbon nanotubes or MXene. Holocellulose structures can exhibit well-preserved cellulose nanofibril arrangements, leading to excellent mechanical properties in fibers, papers, and composites. These materials show promise in diverse fields due to their unique nanostructure, mechanical performance, and potential for advanced applications like flexible electrodes, supercapacitors, and electromagnetic interference shielding. Holocellulose-based materials offer a sustainable, lightweight, and cost-effective alternative with desirable properties for modern technological needs.How does the use of colloidal silica affect the strength of soil specimens under increasing confining pressure?

The use of colloidal silica (CS) in soil specimens under increasing confining pressure has shown significant improvements in strength and liquefaction resistance. Studies have demonstrated that stabilized sand with CS exhibits higher compressibility during consolidation and higher cyclic strength compared to untreated sand, with the strength increasing as the degree of initial stress anisotropy rises. Additionally, the dissipated energy to liquefaction is greater for stabilized sand, indicating enhanced resistance to cyclic loading. Even at low concentrations of CS, undrained shear strength and liquefaction resistance of stabilized silty sand are notably improved, with density having minimal impact on the soil's response to monotonic and cyclic loading. These findings collectively highlight the beneficial effects of colloidal silica in enhancing the strength and resistance of soil specimens under increasing confining pressure.What is the difference between hot rolled and cold rolled steel?

Hot-rolled steel undergoes high-temperature processing, resulting in a scaled surface, while cold-rolled steel is processed at room temperature, yielding a smoother finish. Hot-rolled steel typically has a higher yield strength and is more malleable, suitable for shaping into various forms, whereas cold-rolled steel is stronger and harder due to the cold-working process, making it ideal for applications requiring precise dimensions and a smooth surface finish. The chemical compositions of the two types differ, with hot-rolled steel often containing higher levels of carbon, silicon, and manganese compared to cold-rolled steel. In summary, the key distinctions lie in the processing temperatures, surface finish, mechanical properties, and chemical compositions of hot-rolled and cold-rolled steel.What are the advantages of duplex steel?

Duplex stainless steels offer several advantages due to their unique composition and microstructure. These steels combine the benefits of both austenitic and ferritic stainless steels, providing high strength, excellent corrosion resistance, and good weldability. The lean duplex steels have exceptional performance in alkaline environments, showing resistance to uniform corrosion and stress corrosion cracking. Duplex stainless steels with specific chemical compositions exhibit high strength, pitting corrosion resistance, and hot workability. Additionally, duplex stainless steel continuous pipes are known for their high strength, long fatigue life, plasticity, toughness, and corrosion resistance, achieved by optimizing alloy content and controlling precious metal elements like nickel. These properties make duplex steels a preferred choice in various applications, especially where strength, corrosion resistance, and cost-effectiveness are crucial factors.What are the advantages of duplex steel?

Duplex stainless steels offer several advantages making them a preferred choice in various industries. These steels provide exceptional performance in corrosive environments, such as alkaline settings, due to their resistance to uniform corrosion and stress corrosion cracking. They exhibit high strength, around twice that of standard austenitic stainless steels, allowing for lighter structures and material efficiency. Duplex steels are known for their excellent corrosion resistance against chlorides, making them suitable for welded structures in building applications. Moreover, they offer high yield strength, good mechanical properties, and superior corrosion resistance, including pitting and chloride stress corrosion cracking, compared to austenitic stainless steels. Additionally, advancements in duplex steel compositions have led to the development of super duplex and hyper duplex steels, which find critical applications due to their exceptional properties.