The experimental procedures of specimen fabrication and material characterisation methods are presented.
For this, we have optimized the needle-shaped specimen fabrication procedure by FIB for samples with multiple layers of QDs.
For specimen fabrication, a Nomex honeycomb core and a carbon epoxy composite were used.
The plates were inserted into a silicon dam surrounding them in order to achieve proper alignment and were transferred to a hydraulic press, as shown in Figure 2. Figure 2 Schematic illustration for specimen fabrication.
Specimen fabrication, gripping and load application methods, in addition to material properties of the various components comprising the resin tooth adhesive bond, will influence the stress distribution and consequently, the nominal bond strength and failure mode.
This is because at the 1 5 nm length-scales, even specimen fabrication, manipulation, gripping and alignment required to achieve the desired boundary conditions for mechanical testing are challenging, not to mention the stringent resolution requirement on force and displacement application and measurement.
The dynamic modulus master curves are higher than those of the flexural stiffness for all the surfacing materials especially at low frequency and/or high temperature, which is probably due to the major differences in state of stress, specimen fabrication and aggregate interlock effect between the two test methods.
Specimens were fabricated using different fabrication parameters and post-deposition annealing temperatures and duration.
First, solid cube specimens were fabricated; the parts printed along 0° and 45° directions showed more fabrication-induced pores.
The two main findings are: while specimen cross-section configuration and fabrication method (specimen type) played a key role in controlling the fatigue longevity of the same cement, the stress amplitude was seen as the dominant controlling variable to affect the fatigue behaviour of different cements when using the same specimen type.
