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Nitrides data collection

Hard materials are used as thin hard coatings of some microns thickness for wear protection of tools and machine parts because of their high abrasive wear resistance. For the selection of the coating material the physical, mechanical, and technological properites of these coatings, required by the application, are decisive. The following data collection presents fundamental and available material properties for approximately 130 hard materials as a result of a literature search on carbides, nitrides, borides, silicides, and oxides. [Pg.965]

The future of Raman spectroscopy in the research and the development of catalysts appears to be extremely promising. The recent revolution in Raman instrumentation has dramatically increased the ability to detect weak Raman signals and to collect the data in very short times. Thus, it is now possible to perform real-time Raman analysis and to study many catal) c systems that give rise to unusually weak Raman signals. The enormous strides in Raman instrumentation now allow for the characterization of a wide range of catalytic materials bulk mixed oxides, supported metal oxides, zeolites, supported metal systems, metal foils, as well as single crystal surfaces. Few Raman studies have been reported for sulfides, nitrides, or carbides, but these catalytic materials also give rise... [Pg.149]

Three black nitrides have been reported to crystallize from Sr metal. SrN was reported to have the rocksalt structure [140]. A composition of Sr3N2 was deduced from elemental analysis [138. 141. 142], and a Debye-Scherrer pattern was collected [122] and indexed on a centered monodinic cell (actual composition Sr5N8) [143]. The structure of Sr,N was determined to be anti-CdCl, using single-crystal X-ray diffraction data [144],... [Pg.328]

Figure 15.4 Comparative strain rate versus stress plot for silicon nitride ceramics crept under tension (solid symbols) and under compression (open symbols). The characteristic asymmetric behavior is clearly displayed. The experimental data are collected in Ref [9]. Figure 15.4 Comparative strain rate versus stress plot for silicon nitride ceramics crept under tension (solid symbols) and under compression (open symbols). The characteristic asymmetric behavior is clearly displayed. The experimental data are collected in Ref [9].
Kelley s collection of data on metal carbides and nitrides includes thermodynamic data for methane and ammonia because some of the... [Pg.59]

At the Japan Atomic Energy Research Institute (JAERI) mixed carbide and nitride fuels have been investigated fi om the viewpoint of collection of basic data on advanced FR fuels and also fuels for transmutation of minor actinides [7.56, 7.61]. The research covers fabrication technology, property measurements [7.57, 7.58] and irradiation tests [7.59]. Nine fuel pins with uranium-plutonium carbide were irradiated in Japan Research Reactor-2 (JRR-2) and... [Pg.295]

Table 2 Collected Diffusion Data for Nitrides with NaCl-Type Structure... Table 2 Collected Diffusion Data for Nitrides with NaCl-Type Structure...
I his appendix contains price information for the set of materials for which Appendix B gives the properties. The collection of valid cost data for materials is an extremely difficnlt task, which explains the dearth of materials pricing information in the literature. One reason for this is that there are three pricing tiers manufacturer, distributor, and retail. Under most circumstances, we cite distributor prices. For some materials (e.g., specialized ceramics, such as sihcon carbide and silicon nitride), it is necessary to use manufacturers prices. In addition, there may be significant variation in the cost for a specific material. There are several reasons for this. First, each vendor has its own pricing scheme. Furthermore, cost depends on quantity of material purchased and, in addition, how it was processed or treated. We endeavored to collect data for relatively large orders—that is, quantities on the order of 900 kg (2000 Ibm) for materials that are typically sold in bulk lots—and also for common shapes/treatments. When possible, we obtained price quotes from at least three distributors/manufacturers. [Pg.911]


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