Silicon strength test results

Figure 12.8 Bending strength test results for a silicon nitride ceramic. Plotted is the probability of failure versus the strength. The straight lines represent Weibull distributions. The measured Weibull distribution has a mod ulus of m = 15.5, and the characteristic strength is 844 MPa. Also...

Figure 12.9 Strength test results of a silicon nitride ceramic. Shown are data from uniaxial and biaxial strength tests. To determine the equivalent stress, the PIA criterion was used. Plotted in log-log scale is the characteristic strength of sets of specimens versus their effective volume. The solid line indicates the...

Results from room temperature and elevated temperature lap shear testing of the elastomer-modified LARC-13/titanium bonds are presented in Table 1. After 500 hr at elevated temperature, all four adhesive formulations were reduced in strength compared to LARC-13 control specimen. However, it should be noted that the silicon-containing adhesives showed improved strengths at 260 C after aging at elevated temperature. Such behavior is probably due to additional cross-linking. 

INVESTIGATION OF TENSILE STRENGTH OF THREE NEW SOFT SILICONE ELASTOMERS AND COMPARISON WITH RESULTS OF PREVIOUSLY TESTED MATERIAL... 

The tensile strength of three new soft silicone elastomers and comparison with results of previously tested material is investigated in Chapter 14. The aim of this chapter is to investigate the tensile strength of three silicone elastomers A-Soft line 30, Elite Super Soft, and Bosworth Dentusil and compare the findings with previously evaluated material, Ufi Gel SC. 

The adhesion-in-peel test was used to determine peel strength and adhesion characteristics of a cured-in-place silicone elastomeric joint sealant on aluminium substrates. The sealant used was Dow Corning Type 3145 RTV Adhesive Sealant. The results showed that the silicone sealant had poor adhesive bonding to the untreated aluminium. Plasma polymerisation of hexamethyl-disiloxane(HMDS) onto the aluminium was shown to move the locus of adhesive failure to between the plasma film and the silicone. Plasma polymerisation of HMDS... 

In an attempt to correlate aging-induced changes on the mechanical properties (modulus, tensile strength, and elongation at break) of silicone sealants, Lacasse and Parolil usedthe same series of sealants. The results from both the mechanical properties and the STA (TG/DTA) showed changes in the silicone sealants. However, the authors were not able to correlate the results obtained from the mechanical test with those from the STA. 

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