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(a) (b) (c) (d) Interconnected Closed pore Open pore Fig. 2 SEM micrograph for sintered silica foam with 55 wt% of silica at temperature (a) 1100 °C, (b) 1200 °C, (c) 1300 °C and (d) 1400 °C Porosity is the dominant factor affecting the performance of ceramic materials such as thermal and mechanical properties [11].
It was observed that the properties of silica foam are greatly influenced by the porosity.
Schweigstillova, Preparation of finely macroporous SiOC foams with high mechanical properties and with hierarchical porosity via pyrolysis of a siloxane/epoxide composite, J.
Fukushima, Macro-porous ceramics: processing and properties, Int.
Yacob, Effect of thermal treatment on properties and microstructure of porous alumina, Sol.

The degradation of steel properties with increasing temperature is considered according to Eurocode 3: Part 1-2 provisions.
For temperatures > 700°C, the reduction factors kw,2 given for fillet welds can also be applied to butt welds.
All the test specimens were cut using water jet cutting, for does not create heat-affected zones or mechanical stresses.
The chemical composition and the initial micro-structure of the welded material are elements which will influence considerably the mechanical properties evolution from the welded joint.
Makelainen, Mechanical properties of structural steel at elevated temperatures and after cooling down, Second International Workshop “Structures Fire”, Christchurch, 2002, pp. 273-289 [8] I.

Spring-back is one of the key factors affecting the forming quality of the NC bending of high-strength TA18 tubes (TA18-HS tubes).
XIAO et al. [5] proposed the orthogonal experimental method to obtain the sensitivity order of the mechanical property affecting the springback of high strength steel sheet.
When the analysis is carried out, only change one factor’s value, and keep other factors the reference values to obtain the increment of the safety factor and the impact rate caused by the affecting factor one by one.
Set up a system, the system performance index P is affected by m factors α={α1,α2,…αm}, the function relation is expressed by P = f (α1,α2,…αm).
System performance index and factors of the sensitivity analysis.

Combining several existing theoretical models, this paper analyzes the factors affecting the thermal stress of the film and conducts simulation verification.
Tab.1 Material properties.
Simulation Analysis of Factors Affecting Thermal Stress of Thin Films.
In addition, the thermal stress of the film is affected by many other complex factors.
In addition to the above-mentioned main factors, other factors such as film thickness, size, and curvature also affect film stress.

In a word, Ca3SiO5 particle size in the size of 1-10μm was in favor of enamel remineralization and showed a good mechanical property.
Some factors lead to the particle adherence quantitatively on the enamel surface.
Second, complex morphology may also affect the relative measurement of particle counter, for the smaller particles, adsorption and agglomeration affected the particles measurement quantitatively.
In addition, other factors such as morphology, materials performances and charging may also play a significant role.
Further mechanical properties will be discussed in detail.

In this paper, effect of xylanase treatment on the drainge and physical properties of high yield pulp was studied.
But different enzymes on different pulp processing effects are not the same, while the factors of the amount of enzyme used, the treatment temperature, pulp consistency,processing time and PH on the enzyme also a great effect.
The main factors of affecting paper strength is the amount of enzyme, followed by temperature, PH, time and pulp consistency. 2.2 The impact on the optical properties of the pulp Figure 3 The impact of the optical properties From Figure 3 we can see, with the increase of the amount of enzyme, the brightness showed a trend of increased and then decreased.
“Characteristics and papermaking properties of the Triploid of Populus tomentosa,” China Pulp and Paper Industry 21(10), 17-21
“Timber characteristics and pulp properties of the triploid of Populus tomentosa,” Journal of Beijing Forestry University 5, 22-25

The very important factor affecting both the shape of the load-displacement curve and the empirical correlations for determination of YS and UTS is the stiffness of the loading system [17-19].
[9] DORAZIL, O., FILIP, M., MATOCHA, K.: Factors Influencing the Outcome of the Time Independent Small Punch Tests.
[15] GARCÍA T.E., RODRÍGUEZ C., BELZUNCE F.J.: Small punch test to estimate the mechanical properties of structural steels.
H.: Toughness Losses In Low Alloy Steels At High Temperatures: An Appraisal Of Certain Factors Concerning The Small Punch Test.
A Study on the Influence of Different Factors on the Small Punch Creep Test, SSTT2016 Shanghai [37] ABENDROTH M.

These changes affect properties resulting in either increase or decrease of performance and serviceability.
A substantial amount of research has been done to understand the factors affecting the strength and mechanical properties of AAC [8-13]; however limited and conflicting data have been found towards understanding the cracking behavior of AAC.
The curing time, degree of restraint, environmental factors constitute to external factors by which volume changes; water/binder ratio, materials composition, aggregates’ volume are internal factors.
Therefore, it is essential to control the cracking of AAC by identifying the factors affecting it, which is vital to the serviceability of AAC structures.
Shi, Mechanical properties of alkali-activated concrete: A state-of-the-art review, Constr.

The results show that 22MnB5 has good mechanical properties, but the toughness decreases obviously under certain thermal cycles, showing cold crack sensitivity of 22MnB5.
Introduction With the continuous development of auto industry, manufacturers all over the world pay more attentions to environmental protection, energy saving, emission reduction of fuel and auto safety factors.
The hot forming technology is one of the most successful in producing complex components with superior mechanical properties.
Experimental Procedure Weld heat affected zone (HAZ) is the weakest zone of the whole welding joints, and the most important influencing factors are Tp and t8/5 of the thermal cycle.
Influence of peak temperature and cooling rates on mechanical properties Fig.4 shows hardness distribution of samples at different TP and t8/5.

It was found that the tensile properties are seriously affected by the CNF fraction, ultrasonication time and mechanical stirring time.
Introduction Carbon nano fibers (CNF) are being widely researched recently due to their outstanding mechanical, thermal, and electrical properties.
The use of ANN has recently been used in modeling the physical, chemical and mechanical properties of materials[6-7].
Experimental study of mechanical and electrical properties of carbon nanofiber/epoxy composites.
Artificial neural network modeling to effect of reinforcement properties on the physical and mechanical properties of Al2024-B4C composites produced by powder metallurgy.