Resistivity data table

This section contains the color-coded recommendations for protective barriers in two different chemical resistance data tables, that is ... 

Nickel and Nickel Alloys A wide range of ferrous and nonfer-rous nickel and nickel-bearing alloys are available. They are usually selected because of their improved resistance to chemical attack or their superior resistance to the effects of high temperature. In general terms their cost and corrosion resistance are somewhat a func tion of their nickel content. The 300 Series stainless steels are the most generally used. Some other frequently used alloys are hsted in Table 10-35 together with their nominal compositions. For metallurgical and corrosion resistance data, see Sec. 28. 

High Chromium Alloys. Field experience and laboratory data indicate that alloys high in chromium offer the best fuel ash corrosion resistance. The table below shows laboratory corrosion rates for engineering alloys which have been exposed to several types of vanadium-sodium fuel ash melts. 

Selected references that include thermal insulation data arc listed in the bibliography at the end of this article. Table 2 contains nominal thermal resistivities of ten commonly used insulations. The thermal resistivities iii Table 2 are at 23.9°C (75°F) and include the effects of aging and settling. 

Table 18.7 Chemical resistance data for some commercially available glass-ceramics...

Table 5-2 Room temperature impact resistance data for several plastics...

Changes in corrosion resistance of the electrolytic tin coatings were determined by the iron-solution-value test and the alloy-tin-couple test (6). Corrosion resistance data for the 43 kg (95 lb), Type MR-TU, No. 25 tinplate are presented in Table VIII. These data show that there is no significant difference in the corrosion resistance of the unirradiated... 

TABLE 1—Electronic clamping deduced from surface resistivity data [20]. 

Etch resistance data for several polymer resist systems have been reported by Taylor and Wolf O) and Moreau ( ). Some of the results are tabulated in Table I. While Taylor and Wolf (3 ) have... 

Secondary Properties of Candidate Materials. In terms of maximum and minimum use temperatures, we must simply ensure that our final candidate materials meet the use temperature requirements listed in Table 8.10. This design specification is not particularly restrictive, so we will save it for last. The most common measure of impact resistance is using an Izod impact test (cf. Figure 5.79). A similar test is called the Charpy test, a schematic diagram for which is shown in Figure 8.15. We will find relevant impact resistance data for our candidate materials, if available, and ensure that this design criterion is met as well. 

For all the studied compounds, values of conductivity activation energy A calculated from the data of resistive measurements (Table 1) exceed those estimated in the analysis of IR absorption spectra. This difference may be due to the quality of crystals and to that of the electric contacts used for conductivity measurements. 

The resulting values are given in Table 2.2. The coherence length x between the layers is 1.1 nm which is smaller than the interlayer spacing of 1.55 nm. In a previous work from resistivity data similar values ( n = 36 nm and x = 1-35 nm) have been obtained [201]. 

Figure 15.8 Scatter plot of the balance of impact strength and melt flow for ABS and PC-ABS resins with different heat resistance (data from Table 15.6)...

Both the Technical Bulletins are published by the National Wood Tank Institute, 848 Eastman Street, Chicago, iilinois. They contain useful chemical resistance data and tables for wood. 

Coking resistance data in Table 2 indicate that the amount of coke and/or carbon deposited on the unpromoted catalyst was about 24 time-t more than that on the promoted one after 24 h runs at H20/C=l, 6(X)°C, 1 atm. and SV(methane)=2000 h l. Fig. 1 shows that the amount of deposited coke and/or carbon on B was 2-7.6 times rtxne than that on A-01 at H20/C=2. 420-850"C and 30 kg/cni. ... 

Chemical Resistance. Both resol- and novolac-type phenolic foams have excellent chemical resistance against inorganic and organic chemicals. However, phenolic foams are unable to resist against highly concentrated inorganic acids and alkalies. Chemical resistance data are shown in Table 70. 

---