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Frost resistance of ceramic products is an important factor in the procedure of ceramic roofing tiles durability prediction.
This property depends on many factors: raw material characteristics, processing parameters and environmental conditions (temperature fluctuation and moisture content).
This paper is focused on the influence of vacuum value of the extruder and the speed of extruded column on the properties of the final products ( plain biber tiles).
The total porosity, pore structure and pore size distribution are important factors which influence the durability of ceramic roofing tiles.
This paper is focused on the influence of vacuum value of the extruder and the speed of extruded column on the properties of the final products (plain biber tiles).

Specification cutting tools durability made of cutting ceramic in machining process of steel 80MoCrV4016 is very important for economics of small and medium-sized enterprises, because cutting tool durability is factor that significantly affects the budget of these enterprises.
Material for workpieces is from specific material list with guaranteed chemical structure and mechanical properties.
Tab. 1 Chemical structure of 80MOCRV4016 Chemical structure [%] C Mn Si Cr Mo V ≤ 0,85 ≤ 0,35 ≤ 0,25 3,75-4,25 4,00-4,50 0,90-1,10 Tab. 2 Mechanical properties of 80MOCRV4016 Mechanical properties of C45 Rm [MPa] A5 [%] HB Rp0,2 [Mpa] 735 28 199 410 Technological conditions used for experiments vc = 20 - 700 m.min-1; ap = 0,2 mm; f = 0,1 mm ; re= 0,8mm; kr=80°; k´r=10°; VB = 0,3 mm; Fig. 5 The turning process with cutting tool made of Al2O3 Fig. 6 T-vc dependence for Al2O3 in logarithmic scale Fig. 7 T-vc dependence for Al2O3 + ZrO2 in logarithmic scale Fig. 8 T-vc dependence for Al2O3 + TiCN in logarithmic scale Conclusion Every technological operation in engineering is characterized by different specific factors.
Material for cutting tools defines their machining properties.
Testing properties of those materials are very important, because their properties may be different than properties defined in standards ISO.

A key factor affecting the use of carbon fibre reinforced composite laminates is the low velocity impact damage which may be introduced accidentally during manufacture, operation or maintenance of the component.
They can also be formed into virtually any shape and offer optimized mechanical properties through a combination of fibre, matrix and interface conditions [1].
It can be seen clearly that the second impact on the same laminate doesn’t affect the impact duration.
Both the laminate thickness and the impact energy level may affect the detection of the DTL.
The residual stress from the curing process may also affect the behavior of the laminate under low-velocity impact.

Research programs How sectional parameters of cooling pipes in hot stamping die affect the quenching performance was studied firstly.
Size of the rectangular box The blank used is boron alloy steel 22MnB5, whose thickness is 1.8 mm and thermodynamic properties can be seen in Table 2.
Thermodynamic properties of the steel Density [kg/m3] 7800 Thermal conductivity [w/(m·˚C] 32 Modulus of elasticity [GPa] 1011 Poisson's ratio 0.3 Specific heat [J/(kg·˚C)] 650 Structure parameters design Fig. 2 is the illustration of cooling pipe section, in which D is the diameter of cooling pipe, S is the distance between cooling pipes and H is the distance between cooling pipes and die surface.
Orthogonal experiments design Hot stamping process involves complex thermo-mechanical coupling.
In experiments, the initial value of D, S and H were taken as the benchmark, then changed the D value as 10mm, 12mm and 15mm, the S value as 30mm, 35mm and 40mm, the H value as 15mm, 20mm and 25mm, so the three factors and three levels orthogonal experiments were designed, as shown in Table 3.

We have previously [1] experimentally determined the mechanical properties of the apple and the pear.
The results showed that both properties varied clearly along the axis as well as radially.
Nevertheless most authors have modeled the fruits as spherical in shape and uniform in their mechanical properties which doesn’t mimic the interior or exterior geometry of each fruit.
The former is related to the interpretation of the intensity levels in each tomogram, which should be consistent across all tomograms in a set; lighting conditions and other imaging factors should be kept constant throughout the digitization of all slices.
“Bruise Susceptibilities of Golden Delicious Apples as Affected by Mechanical Impact and Fruit Properties.”

This is motivated by the fact that fine-grained materials differ significantly from their coarse grained counterparts in physico-chemical, mechanical, etc. properties [4].
In view of the above, the analysis of the effect exerted by structural changes, including GB state, on the mechanical properties (microhardness, ultimate strength and yield strength, deformation to failure, creep parameters) and on the physical properties (electrical resistance) was performed using coarse-grained and nanostructured nickel and copper [6-8].
Thus, the factor determining the unique superplastic properties of 1420-grade alloy in ultrafine-grained state is the formation of strained, non-equilibrium state of grain boundaries after severe plastic deformation.
For what properties is it important?
Kolobov: The increase of DGB influences practically all mechanical properties controlled by diffusion.

Domestic and foreign scholars have had lots of studies on determination method and influencing factors of surface roughness.
It was an important way for reasonably developing plantation-Mytilaria laosensis to strengthen comprehensive research of the nature and mechanical processing properties , therefore, many experts do a lot on this. [8-9].
To know whether three factors have significant influence on various parameter or not, the variance analysis is carried on.
Research and Evaluation on the Planning and Sanding Properties of Mytilaria laosensis [J].Advanced Materials Research. 2012, 420: 982-986
Study of Physical and Mechanical Properties of Wood from Mytilaria laosensis Plantation [J].Journal of Central South University of Forestry & Technology. 2007,(05): 97-100. ( In Chinese)

This research focuses on preparing lunar mare (LX-M100) and highland (LX-TH100) simulants with different particle size fractions to develop a tribological model for further investigation of their frictional properties.
Methods such as the Discrete Element Method (DEM) and Finite Element Analysis (FEA) allow for detailed simulation of interactions between regolith particles and materials, considering factors like particle size, shape, distribution, and mechanical properties to provide a comprehensive understanding of abrasive wear mechanisms [4].
PTFE seal materials were tested against stainless steel under lunar regolith conditions in Barkó et. al.’s (2025) study, and regolith size categories affecting wear and friction coefficient were determined for this system [6].
The chemical composition in the form of total oxides and physical and terra-mechanical properties are described in Table 1 and Table 2 respectively.
Physical and terra-mechanical properties.

The process features relative rotational movement between die and feedstock material, resulting in complex shear introduction affecting local thermal and material flow conditions.
Fig. 1: Sketch of FEP setup, including relevant components and main control factors.
This allowed for detection of a helical material flow forming the wire and the detrimental effects of excessive SiC reinforcements: crack-opening and inhomogeneous mechanical properties as a result of conglomerate formation.
Extrudate Properties.
Ardahani, Effect of process parameters on the physical properties of wires produced by friction extrusion method, Int.

Fatigue strength is one of the most important mechanical property to be paid attention for long-life use of transportation system.
Average grain size and mechanical properties.
The average grain size and mechanical properties of the material is indicated in Table 2.
As shown in Fig. 7 (b), Schmid factors of grains adjacent to the crack initiation site are large, and Fig. 7 (a) indicates that the misfit of both side of crack initiation site are also large.
Ninomiya, A study on very high cycle fatigue properties of low flammability magnesium alloy in rotating bending and axial loading, Appl.