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Online since: August 2013
Authors: Wei Xiang Liu
Effect Factors of Ceramic Grinding Surface Residual Stresses
Grinding Process Effect on Surface Residual Stress.
Grinding Force Effect on Surface Residual Stresses. under the conditions of small cut depth and repeatedly polishing conditions, the grinding force can make residual stress in smaller variation gradient, larger action depth, can produce good work intensity and surface properties, while in the large depth of cut repeated polishing conditions, even though the compressive residual stress value is larger, the variation gradient acting depth is small, it is not conducive to the strength and surface properties of the workpiece.
In various factors affecting the formation of residual stress, the grinding temperature is the main effect factor of depth and numerical on surface residual stress.
The grinding temperature increases with the grinding depth and wheel speed increases, the grinding depth is the main factors of the grinding temperature.
Therefore, thermoplastic deformation and porcelain phase change are major effect factors on the grinding surface residual stresses.
Grinding Force Effect on Surface Residual Stresses. under the conditions of small cut depth and repeatedly polishing conditions, the grinding force can make residual stress in smaller variation gradient, larger action depth, can produce good work intensity and surface properties, while in the large depth of cut repeated polishing conditions, even though the compressive residual stress value is larger, the variation gradient acting depth is small, it is not conducive to the strength and surface properties of the workpiece.
In various factors affecting the formation of residual stress, the grinding temperature is the main effect factor of depth and numerical on surface residual stress.
The grinding temperature increases with the grinding depth and wheel speed increases, the grinding depth is the main factors of the grinding temperature.
Therefore, thermoplastic deformation and porcelain phase change are major effect factors on the grinding surface residual stresses.
Online since: May 2020
Authors: E.Yu. Gornostaeva, D.I. Dryazgov, N.P. Lukutsova
Improvement of Wood-Cement Composition Properties with Microsilica Additive
E.Yu.
Two interrelated factors (chemical and physical) could be distinguished at that.
The degree of influence of these aggregates on the structure formation and physico-mechanical WCC properties is different.
Results and Discussion The mechanical properties of cement wood depend on a number of factors [1].
Two interrelated factors (chemical and physical) could be distinguished at that.
Two interrelated factors (chemical and physical) could be distinguished at that.
The degree of influence of these aggregates on the structure formation and physico-mechanical WCC properties is different.
Results and Discussion The mechanical properties of cement wood depend on a number of factors [1].
Two interrelated factors (chemical and physical) could be distinguished at that.
Online since: August 2004
Authors: Yiu Wing Mai, Hyo Jin Kim, Jae Kyoo Lim, Jun Yong Choi
Such factors are overlap
length, overlap width, added pressure and surface treatment.
The optimum condition determined for experimental factors can improve the bonding technique and design a high strength.
Table 1 shows chemical composition and mechanical properties of AA7075-T735.
The mechanical properties of the adhesive in tension were measured using tensile specimens.
Table 2 shows the mechanical properties of the adhesive measured tensile specimens.
The optimum condition determined for experimental factors can improve the bonding technique and design a high strength.
Table 1 shows chemical composition and mechanical properties of AA7075-T735.
The mechanical properties of the adhesive in tension were measured using tensile specimens.
Table 2 shows the mechanical properties of the adhesive measured tensile specimens.
Online since: June 2010
Authors: Dae Whan Kim, Woo Seog Ryu, Sung Ho Kim
The weld metal
had similar mechanical properties to base metal.
Thus, it concluded that the soundness of the narrow gap welding of a thick-walled 9Cr-1Mo-1W steel was confirmed in terms of the welding uniformity through the depth and mechanical properties.
In this paper, the NGW technique using a thick-walled 9Cr-1Mo-1W steel is evaluated in points of metallurgical soundness, uniformity through welding depth and mechanical properties.
The narrow gap welding technology was applied to join the thick-walled 9Cr-1Mo-1W steel, and evaluated the welding soundness in terms of homogeneity through welding depth and mechanical properties.
The weld metal had similar mechanical properties to base metal, though the ductile-brittle transition temperature of weld metal was near room temperature.
Thus, it concluded that the soundness of the narrow gap welding of a thick-walled 9Cr-1Mo-1W steel was confirmed in terms of the welding uniformity through the depth and mechanical properties.
In this paper, the NGW technique using a thick-walled 9Cr-1Mo-1W steel is evaluated in points of metallurgical soundness, uniformity through welding depth and mechanical properties.
The narrow gap welding technology was applied to join the thick-walled 9Cr-1Mo-1W steel, and evaluated the welding soundness in terms of homogeneity through welding depth and mechanical properties.
The weld metal had similar mechanical properties to base metal, though the ductile-brittle transition temperature of weld metal was near room temperature.
Online since: May 2025
Authors: Sukanta Das, Ariyana Dwiputra Nugraha, Mudjijana Mudjijana, Muhammad Kusni, Muhammad Aji Wirasena, Seno Darmanto, Alvin Dio Nugroho, Daffa Alandro, Mahesafin Alna Ramadhan, Muhammad Ibnu Rashyid, Rela Adi Himarosa, Muhammad Akhsin Muflikhun
The moisture content of powder can fluctuate due to environmental factors, affecting the manufacturing process and quality of the final product [1], [22].
Temperature is an important factor affecting plant post-harvest storage due to its impact on enzyme activity [27].
Suleria, “Farm to consumer: factors affecting the organoleptic characteristics of coffee.
II: postharvest processing factors,” Compr.
Botelho, “Hygroscopic equilibrium and physical properties evaluation affected by parchment presence of coffee grain,” Spanish J.
Temperature is an important factor affecting plant post-harvest storage due to its impact on enzyme activity [27].
Suleria, “Farm to consumer: factors affecting the organoleptic characteristics of coffee.
II: postharvest processing factors,” Compr.
Botelho, “Hygroscopic equilibrium and physical properties evaluation affected by parchment presence of coffee grain,” Spanish J.
Online since: August 2014
Authors: Gheorghe Paltanea, Dorina Popovici, George Papanicolaou, Mihael Sultan, Veronica Manescu Paltanea
The factors affecting the load carrying capacity of an adhesive joint can be summarized as follows: geometrical configuration of bonded parts, adhering conditions, surface roughness, thickness of the adhesive layer and pressure applied to adhesive resin [2].
So, for a safe joint in structures it is important to know what happens in joints, and how is their strength influenced by different factors.
In this paper it was used as material for piezoelectric actuators the lead zirconate titanate PZT – 5H, which is also a pyroelectric and a ferroelectric material and its properties are those listed in [7].
In case of the PZT-5H the material properties are considered as in [7].
The adhesive properties are: E2 = 3.22 GPa, ν2 = 0.4 and ρ2 = 1090 kg/m3.
So, for a safe joint in structures it is important to know what happens in joints, and how is their strength influenced by different factors.
In this paper it was used as material for piezoelectric actuators the lead zirconate titanate PZT – 5H, which is also a pyroelectric and a ferroelectric material and its properties are those listed in [7].
In case of the PZT-5H the material properties are considered as in [7].
The adhesive properties are: E2 = 3.22 GPa, ν2 = 0.4 and ρ2 = 1090 kg/m3.
Online since: April 2019
Authors: Yu Mei Bao, Hao Chai, Cheng Wu Wang
The effect of tribological properties of laser-textured with different surface coverage and diameters on HA/ZrO2 coating is studied.
Introduction Bio-ceramics have increasingly application due to their good mechanical properties and bio-compatibility [1].
All these factors lead to the larger friction coefficient and higher depth.
Original surface b.4N c.8N d.12N Conclusion The friction property of textured samples is affected by surface coverage rates and circular dimple diameters as well as the lubricant.
Micro-dimple Surface Texture Picosecond Laser Processing and Tribological Properties[J].
Introduction Bio-ceramics have increasingly application due to their good mechanical properties and bio-compatibility [1].
All these factors lead to the larger friction coefficient and higher depth.
Original surface b.4N c.8N d.12N Conclusion The friction property of textured samples is affected by surface coverage rates and circular dimple diameters as well as the lubricant.
Micro-dimple Surface Texture Picosecond Laser Processing and Tribological Properties[J].
Online since: October 2010
Authors: Ming Hui Liu, Yuan Feng Wang
Based on the chemic reactivity properties between fly ash and cement, an appropriate concrete strength model are chosen, and a new model for the fly ash strength factor combing Maturity method is built up and the factors are regressed by existing experimental datum.
The effect of fly ash in improving the mechanical properties of concrete is investigated by experimental study.
Based on the chemic reactivity properties between fly ash and cement, an appropriate concrete strength model are chosen, and a new model for the fly ash strength factor combing Maturity method is built up and the factors are regressed by existing experimental datum.
The physical properties of cements are given in Table 1.
[5]Bijen, J., Selst ,R.V., Cement Equivalence Factors for Fly Ash[J].
The effect of fly ash in improving the mechanical properties of concrete is investigated by experimental study.
Based on the chemic reactivity properties between fly ash and cement, an appropriate concrete strength model are chosen, and a new model for the fly ash strength factor combing Maturity method is built up and the factors are regressed by existing experimental datum.
The physical properties of cements are given in Table 1.
[5]Bijen, J., Selst ,R.V., Cement Equivalence Factors for Fly Ash[J].
Online since: May 2021
Authors: Mohammed Zorah, Nur Ain Syafiqah Sudin, Nahida Jumah, Alhussein Majhool, Ebrahim Mahmoudi, Norlinda Daud, Izan Roshawaty Mustapa
Due to its inherent brittleness, low thermal stability, and poor crystallization, it needs to improve its properties, namely in terms of thermal and mechanical performance.
These disadvantages result from the structure and composition of the PLA macromolecular chains, the ratio of optical isomers, and many other factors.
The DMA of nanocomposites displayed the reinforcement of TiO2 nanofiller into the plasticizer PLA matrix and significant improvements in the mechanical properties.
The best thermo-mechanical properties and thermal stability were obtained at 3.5 wt% of TiO2 loading.
Ma, The microstructure and mechanical properties of 3D printed carbon nanotube‐polylactic acid composites, Polymer Composites 39(2) (2018) 1060-1071
These disadvantages result from the structure and composition of the PLA macromolecular chains, the ratio of optical isomers, and many other factors.
The DMA of nanocomposites displayed the reinforcement of TiO2 nanofiller into the plasticizer PLA matrix and significant improvements in the mechanical properties.
The best thermo-mechanical properties and thermal stability were obtained at 3.5 wt% of TiO2 loading.
Ma, The microstructure and mechanical properties of 3D printed carbon nanotube‐polylactic acid composites, Polymer Composites 39(2) (2018) 1060-1071
Online since: June 2010
Authors: Graham Clark, Ung Hing Tiong, Bruce R. Crawford
Such degradation is influenced by the response of coatings to
environmental factors such as high temperatures and exposure to ultraviolet radiation, as well as
chemical factors.
Coating life in the region of these displacement concentrations is likely to be affected by the local strain effects, and the structural loading history may therefore be a factor which needs to be considered in predicting and assessing rates of coating degradation.
Coating Failure Environment Most coating failure studies focus on two critical experimental factors, namely (i) ultraviolet (UV) radiation exposure and (ii) the combined function of heat and moisture (the hydrothermal effect) [4].
In general, both effects cause a series of chain chemical reactions in the polyurethane topcoat, leading inevitably to deterioration in coating mechanical properties; the process can be accelerated by the presence of water and elevated temperature.
The deterioration of a polyurethane topcoat can be measured through its effect on coating appearance and coating mechanical properties (i.e. tensile strength, elongation, impact strength and elastic modulus).
Coating life in the region of these displacement concentrations is likely to be affected by the local strain effects, and the structural loading history may therefore be a factor which needs to be considered in predicting and assessing rates of coating degradation.
Coating Failure Environment Most coating failure studies focus on two critical experimental factors, namely (i) ultraviolet (UV) radiation exposure and (ii) the combined function of heat and moisture (the hydrothermal effect) [4].
In general, both effects cause a series of chain chemical reactions in the polyurethane topcoat, leading inevitably to deterioration in coating mechanical properties; the process can be accelerated by the presence of water and elevated temperature.
The deterioration of a polyurethane topcoat can be measured through its effect on coating appearance and coating mechanical properties (i.e. tensile strength, elongation, impact strength and elastic modulus).