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Online since: November 2006
Authors: C.P. Bergmann, S.R. Bragança
Effect of quartz of fine particle size on porcelain properties
S.R.
Bergmann Federal University of Rio Grande do Sul LACER/UFRGS Keywords: porcelain, strength, thermal strength Abstract The mechanical properties of porcelain are strongly influenced by the generated thermal stress during processing.
Introduction The final technical properties of triaxial ceramics is a consequence of a series of factors, such as the choice and preparation of raw materials, forming conditions, drying conditions, and firing schedule, including peak temperature.
These factors determine the complexity of the microstructure, and also the development of phases during sintering.
Wachtman, Mechanical Properties of Ceramics, John Wiley & Sons (1996)
Bergmann Federal University of Rio Grande do Sul LACER/UFRGS Keywords: porcelain, strength, thermal strength Abstract The mechanical properties of porcelain are strongly influenced by the generated thermal stress during processing.
Introduction The final technical properties of triaxial ceramics is a consequence of a series of factors, such as the choice and preparation of raw materials, forming conditions, drying conditions, and firing schedule, including peak temperature.
These factors determine the complexity of the microstructure, and also the development of phases during sintering.
Wachtman, Mechanical Properties of Ceramics, John Wiley & Sons (1996)
Online since: December 2013
Authors: Bukhari Manshoor, Mohd Razali Muhamad, Nur Izan Syahriah Hussein, Taufik Taufik, Mohd Amri Lajis, Laily Suraya, Halida Ilyani Kamarudin Nor, Raja Izamshah, Mohd Hadzley, Mohd Amran Ali
Table 1 shown the properties of aluminium LM6.
Table 1: Mechanical properties of LM6 [3] QUANTITY VALUE UNIT Tensile Strength, Ultimate 290 MPa Tensile Strength, Yield 131 MPa Elongation 3.5 % Poisons ration 0.33 - Fatigue Strength 130 MPa Machinability 30 - Shear Strength 170 MPa Table 2: Factors and levels selected for the experiments Factors Input Parameter Level Low (-1) Medium (0) High (+1) A Peak Current (A) 2 16 30 B Pulse on Time (µs) 1 200 400 C Pulse off Time (µs) 1 805 1609 In this project, three input parameters with three levels were selected.
It shows that peak current is dominant factor affecting MRR followed by pulse on time and pulse off time.
It can be concluded that peak current is the main factor affecting MRR, EWR, and Ra.
Another two factors, pulse on-time and pulse-off time show less significant factor affected the responses.
Table 1: Mechanical properties of LM6 [3] QUANTITY VALUE UNIT Tensile Strength, Ultimate 290 MPa Tensile Strength, Yield 131 MPa Elongation 3.5 % Poisons ration 0.33 - Fatigue Strength 130 MPa Machinability 30 - Shear Strength 170 MPa Table 2: Factors and levels selected for the experiments Factors Input Parameter Level Low (-1) Medium (0) High (+1) A Peak Current (A) 2 16 30 B Pulse on Time (µs) 1 200 400 C Pulse off Time (µs) 1 805 1609 In this project, three input parameters with three levels were selected.
It shows that peak current is dominant factor affecting MRR followed by pulse on time and pulse off time.
It can be concluded that peak current is the main factor affecting MRR, EWR, and Ra.
Another two factors, pulse on-time and pulse-off time show less significant factor affected the responses.
Online since: February 2008
Authors: Qing Song Ma, Zhao Hui Chen, Ke Jian, Song Wang, Jing Yu Liu
The densities and mechanical properties of them are shown in Table 1.
The interfacial structure and density are two most important factors [5,6].
Another important factor which affects the mechanical properies of the composites is the interfacial structure.
The densities and mechanical properties of them are shown in Table 2.
As a result, B-1600 exhibit much low mechanical properties.
The interfacial structure and density are two most important factors [5,6].
Another important factor which affects the mechanical properies of the composites is the interfacial structure.
The densities and mechanical properties of them are shown in Table 2.
As a result, B-1600 exhibit much low mechanical properties.
Online since: July 2024
Authors: Wisam Imad Imad Adnan, Mohammed Ali Nasser, Haidar Akram Hussein
The mechanical properties of the selected wire drawing product with different speeds.
Results and Discussions The experimental work classified the results into two branches; the first is concentrated on the main practical factors affecting on the die strength, which consist of wire drawing load, temperature, and die wear rate.
The second branch concentrated on the factors affecting the product's (wire) surface hardness and mechanical strength.
Factors Influencing the Die Strength 7.1 Wire Drawing Load Drawing load is an important factor which is a mechanical load applied on the die during the wire drawing process.
The wire drawing temperature relation with the combination of with and without lubrication for different wire alignment angles and speeds. 7.3 Wire Drawing Wear Rate The wear rate action on the die is an important factor can be affecting the die properties and the product dimensions.
Results and Discussions The experimental work classified the results into two branches; the first is concentrated on the main practical factors affecting on the die strength, which consist of wire drawing load, temperature, and die wear rate.
The second branch concentrated on the factors affecting the product's (wire) surface hardness and mechanical strength.
Factors Influencing the Die Strength 7.1 Wire Drawing Load Drawing load is an important factor which is a mechanical load applied on the die during the wire drawing process.
The wire drawing temperature relation with the combination of with and without lubrication for different wire alignment angles and speeds. 7.3 Wire Drawing Wear Rate The wear rate action on the die is an important factor can be affecting the die properties and the product dimensions.
Online since: August 2018
Authors: Minch Quang Do, Hoc Thang Nguyen, Thu Ha Bui, Van Quang Le, Minh Duc Hoang, Vo Thi Ha Quyen Pham
The geopolymer can be synthesized in many different conditions depending on factors of temperature, pressure, and curing conditions.
Formation of RM-based geopolymer was affected by many factors, in which, the alkaline activators are the most important factor.
The red mud powder passed 90μm-mesh siever was tested engineering properties.
Engineering properties of the WGS-RM-based geopolymer materials.
Promentilla, Mechanical and Thermal Properties of Geopolymers from Mixtures of Coal Ash and Rice Hull Ash using Water Glass Solution as Activator, ASEAN Journal of Chemical Engineering 15 (2015) 57-65
Formation of RM-based geopolymer was affected by many factors, in which, the alkaline activators are the most important factor.
The red mud powder passed 90μm-mesh siever was tested engineering properties.
Engineering properties of the WGS-RM-based geopolymer materials.
Promentilla, Mechanical and Thermal Properties of Geopolymers from Mixtures of Coal Ash and Rice Hull Ash using Water Glass Solution as Activator, ASEAN Journal of Chemical Engineering 15 (2015) 57-65
Online since: October 2013
Authors: Di Zhao, Jun Li Luo, Zhi Sheng Xu
Due to long test cycle, high cost and the complex factors, the long-term deformation properties (such as creep and shrinkage) of recycled aggregate concrete (short for RAC) are rarely reported so far.
Visibly, the long-term deformation properties of RAC can not be generalized, and the replacement ratio of RA is not the only influence factors.
Quan Hongzhu[6] carried out a study on the mechanical properties, creep and shrinkage properties of RAC made from high-quality C-RA (ClassⅠ) and low quality C-RA(Class III).
However, researchers mostly focus on short term mechanical properties of recycled aggregate concrete, such as 28d strength, elastic modulus.
Due to long test cycle, high cost and the complex factors, the long-term deformation properties (creep and shrinkage) of recycled concrete are rarely reported.
Visibly, the long-term deformation properties of RAC can not be generalized, and the replacement ratio of RA is not the only influence factors.
Quan Hongzhu[6] carried out a study on the mechanical properties, creep and shrinkage properties of RAC made from high-quality C-RA (ClassⅠ) and low quality C-RA(Class III).
However, researchers mostly focus on short term mechanical properties of recycled aggregate concrete, such as 28d strength, elastic modulus.
Due to long test cycle, high cost and the complex factors, the long-term deformation properties (creep and shrinkage) of recycled concrete are rarely reported.
A Robust Statistical Analysis of Factors Affecting Interface Bonding between Asphalt Pavement Layers
Online since: August 2024
Authors: Rabea Al-Jarazi, Ali Rahman, Chang Fa Ai
These factors include mixture properties, temperature, properties of tack coat material and its application rate, moisture, and compaction.
All materials' properties met the technical requirements proposed by the Chinese specification of JTG F40-2004 (Code of China 2004) [12].
The results clearly demonstrate that a statistically significant interaction existed between any two factors.
The three-way FAV differs from the two-way FAV in that it considers three factors, each with multiple levels.
Mechanical testing of interlayer bonding in asphalt pavements.
All materials' properties met the technical requirements proposed by the Chinese specification of JTG F40-2004 (Code of China 2004) [12].
The results clearly demonstrate that a statistically significant interaction existed between any two factors.
The three-way FAV differs from the two-way FAV in that it considers three factors, each with multiple levels.
Mechanical testing of interlayer bonding in asphalt pavements.
Online since: December 2010
Authors: Xin Xia, Qin Li Gong, Juan Feng Jin, Yi Jie Zhang, Feng Yuan Zou
In this paper, fabric properties were measured at the beginning.
Due to the sewing process affecting the shape style, which may generate greater error, no treatment on hem was done.
According to the meanings of original variables, we have defined these four main factors.
Subjective and objective Evaluation on Semi-fitting skirt Shape Style Based on Fabric Physical and Mechanical Properties.
Shape of semi-fitting skirt and its predictive model based on the properties of fabric.
Due to the sewing process affecting the shape style, which may generate greater error, no treatment on hem was done.
According to the meanings of original variables, we have defined these four main factors.
Subjective and objective Evaluation on Semi-fitting skirt Shape Style Based on Fabric Physical and Mechanical Properties.
Shape of semi-fitting skirt and its predictive model based on the properties of fabric.
Online since: May 2004
Authors: H. Koyuncu, Y. Guney, G. Yılmaz, N. Ural, R. Bakıs
Mechanical and Microstructural Properties of Heated and Polluted
Kaolinite and Bentonite
G.
This work establishes the advantages of observing mechanical properties parallel with microstructure variations in order to understand the changes in the properties of clays.
This study examines mechanical and microstructural properties of heated and polluted kaolinite and bentonite.
As is the case with material composition, the microstructure is also a basic factor that influences soil engineering properties [15,16].
Microstructure is also a basic factor in determining the strength properties of clays.
This work establishes the advantages of observing mechanical properties parallel with microstructure variations in order to understand the changes in the properties of clays.
This study examines mechanical and microstructural properties of heated and polluted kaolinite and bentonite.
As is the case with material composition, the microstructure is also a basic factor that influences soil engineering properties [15,16].
Microstructure is also a basic factor in determining the strength properties of clays.
Online since: August 2017
Authors: Bao Min Wang, Gao Nian Li
Wu [12] studied the deterioration characteristic of mechanical properties of concrete in the presence of stray current and chloride ion.
Results show that mechanical properties of concrete decrease more remarkable under the two factors coupling actions than single factor action, the deterioration degree depends on the voltage magnitude, chloride ion concentration and corrosive time.
According to the experimental results, he established the relationship between stray current and mechanical properties of concrete by regression analysis.
In recent years, many scholars have studied the effect of stray current and multi-factors coupling conditions on properties of concrete.
Inhibition of Stray Current Inhibition for Influence of Stray Current on Mechanical Properties of Concrete.
Results show that mechanical properties of concrete decrease more remarkable under the two factors coupling actions than single factor action, the deterioration degree depends on the voltage magnitude, chloride ion concentration and corrosive time.
According to the experimental results, he established the relationship between stray current and mechanical properties of concrete by regression analysis.
In recent years, many scholars have studied the effect of stray current and multi-factors coupling conditions on properties of concrete.
Inhibition of Stray Current Inhibition for Influence of Stray Current on Mechanical Properties of Concrete.