Search results

Finally, the laws and mechanisms affecting the quality of the machined surface were obtained.
It is difficult to guarantee the optical properties after processing.
Table 1 BK7 optical glass part material properties modulus of elasticity 88GPa Poisson's ratio 0.215 density 2.51g/cm2 Knoop hardness HK 100 610Kg/mm2 2.2.
Test plan In this experiment, the effects of three factors, spindle speed, milling speed and milling depth, on the surface quality of BK7 optical glass were studied.
In order to accurately study the influence of various factors on the surface quality of the workpiece and the mutual influence of various factors, the multi-factor orthogonal test method was used to design the test experiment.

The thermoelastic stress, mechanical properties and defect content of bulk 4H n-type SiC crystals were investigated following adjustments to the PVT growth cell configuration that led to a 40% increase in growth rate.
Shen, Nano-scale elastic-plastic properties and indentation-induced deformation of single crystal 4H-SiC, J.
Karim, Structural, elastic and electronic properties of 2H- and 4H-SiC, Int.
Pharr, Extraction of anisotropic mechanical properties from nanoindentation of SiC-6H single crystals, J.
Zu, A comparative study of the mechanical and thermal properties of defective ZrC, TiC and SiC, Sci.

Some studies show that halloysite enhanced thermo-mechanical properties with lower filler loadings compared to conventional polymers.
Additionally, composites containing halloysite have better mechanical properties such as stiffness, toughness, dimensional stability.
Some factors that affect composite performance are filler shape, dimension, and aspect ratio, together with surface characteristics.
Moreover, the study also covers the effect of Philippine halloysite on the mechanical properties of 3D-printed constructs using FDM technology.
The mechanical properties of the filaments were determined using a universal testing machine (UTM, Instron 5585H) with 10kN static load cell.

In this study, mechanical properties and fracture toughness of a Zr-based BMG alloy containing ductile crystalline particles dispersed in a BMG matrix were measured, and fracture mechanisms were examined by direct observation of fracture processes.
Compressive Properties.
Compressive properties of the LM1 alloy and LM2 alloy are shown in Table 1.
Summary The present study confirms enhanced fracture properties of the LM2 alloy over the LM1 alloy according to the R-curve behavior, although the measured apparent fracture toughness of the LM2 alloy is lower than that of the LM1 alloy.
If the size, shape, and volume fraction of crystalline particles can be optimized by controlling casting parameters, mechanical properties of the LM2 alloy are expected to further improve.

It is clear that these materials must display particularly suitable mechanical, physical and chemical properties.
The high mechanical properties of biocompatible metals and their alloys make them well-suited as long-term implants in osseous system surgery.
On the side of the implant, the main affecting factors include: chemical constitution, material homogeneity, implant surface quality; composition, type and thickness of protective layers (bioglass, hydroxyapatite, etc.) size and shape of the implant, the process of implantation and adjustment of the implant to accommodate natural anatomy.
The process of differentiation of osteogenic cells is highly complex and can be affected by various physical and chemical microenvironmental factors (pressure, mechanical forces, growth stimulation agents, etc.) which cannot all be determined at this time. [1, 6] The integration and healing of implants is also affected by outer surface coarseness.
Part 1: Compaction, sintering behaviour and properties.

However, free carbon also reduced the mechanical properties of Vickers’ hardness and fracture toughness of the composites.
The goal is to determine the effect of compaction pressure during sintering to the resulting mechanical properties.
Table 1 shows the mechanical properties of the samples and relative density in dependence on the sintering temperature.
Liu, Mechanical properties of nanocrystalline TiC–ZrC solid solutions fabricated by spark plasma sintering.
Goller, Densification behavior and mechanical properties of spark plasma-sintered ZrC–TiC and ZrC–TiC–CNT composites.

Experimental curves can be used to determine the mechanical properties of the indented material.
The mechanical properties of the 3 HCP are summarized in Table 1.
Table 1 : Some mechanical properties of the 3 HCP Metals Materials c/a Yield strength [MPa] Melting Point [°C] CP-Ti 1.587 350 1665 Zn 1.856 30 419.6 Mg (AZ31) 1.624 162 630 Experimental methods The titanium used in this study is a Commercial Purity (CP) α-Ti (called T40) received as a thin sheet (1.6 mm thickness).
The indentation must be primarily a measure of the plastic properties of the metal (originally described by Tabor [4]).
The hardnesses of magnesium strongly vary with the orientation (by a factor of 3.6).

Different stand-off distances were used to investigate their influence on the microstructure and mechanical properties of the clad fabricated at the same amount of explosive charge.
Introduction The application of laminar composites, due to their unique mechanical, chemical and/or physical properties, has significantly increased in the recent years.
Conclusions This work describes the macro-/meso- scale analyses of the microstructure and the chemical composition changes that occur in the interfacial layers of explosively welded sheets, as well as the mechanical properties of the clads, based on Cu and Ti.
Findik, The influence of some factors on steel/steel bonding quality on there characteristics of explosive welding joints, J.
Gulec, Microstructural and mechanical properties of Cu–Ti plates bonded through explosive welding process, J.

Properties of Kenaf Filled Unplasticized Polyvinyl Chloride Composites Mohd Firdaus Abdrahman1, a and E.
Meanwhile, the addition of 30% fiber contents with PMPPIC was successful to enhance the tensile properties and the efficiency of PMPPIC was verified using Fourier Transform Infra-Red (FTIR) spectroscopy.
The challenge in the materials development of engineering thermoplastics composite is to get an excellent combination of properties and manufacturing process at a moderate cost.
Since mechanical properties are concerned, the main target is to focus on stiffness, strength and toughness.
Therefore, in this research where Kenaf is used as filler and PMPPIC as coupling agent (Fig. 1) in this composite to get a good combination of mechanical properties and manufacturing process, several factors that influence and affect the properties of the composites need to be considered.

Liquid damper are used for partial suppression of impact energy, reducing longitudinal tensile and compressive forces affecting the structure of the vehicle.
A study was made of the mechanical properties of transverse samples cut from hot-rolled bars of several batches.
Subsequently, the modes providing the primary measure were checked by the level of mechanical properties in the body of the barrel.
Table 5 shows the results of the assessment of the mechanical properties of the casings processed according to modes A and B.
When analyzing the effect of holding time on the hardenability of steels with excess nitrogen, two factors should be considered.