By Nina Orlovskaya, Mykola Lugovy
The aim of this ebook is to debate the present prestige of analysis and improvement of boron-rich solids as sensors, ultra-high temperature ceramics, thermoelectrics, and armor. Novel organic and chemical sensors made up of stiff and lightweight boron-rich solids are very interesting and effective for functions in clinical diagnoses, environmental surveillance and the detection of pathogen and biological/chemical terrorism brokers. Ultra-high temperature ceramic composites express first-class oxidation and corrosion resistance for hypersonic motor vehicle functions. Boron-rich solids also are promising applicants for high-temperature thermoelectric conversion. Armor is one other vitally important software of boron-rich solids, due to the fact so much of them express very excessive hardness, which makes them ideal applicants with excessive resistance to ballistic influence. the subsequent topical components are provided: •boron-rich solids: technology and expertise; •synthesis and sintering ideas of boron wealthy solids; •microcantilever sensors; •screening of the prospective boron-based thermoelectric conversion fabrics; •ultra-high temperature ZrB2 and HfB2 established composites •magnetic, shipping and high-pressure homes of boron-rich solids; •restrictions of the sensor dimensions for chemical detection; •armor
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Extra info for Boron Rich Solids: Sensors, Ultra High Temperature Ceramics, Thermoelectrics, Armor
However, the experimentally determined B content in the unit cell is higher than the 1,584 B atoms (see ). Figure 6 shows that spectra of different compounds belonging to this structure group are essentially the same, thus confirming that the spectra are preferably determined by vibrations of the boron framework, and not by the heavy metal atoms, whose contribution is expected at rather low frequencies. We attribute the predominant peak at 1,070 cm−1 to the intericosahedral and the next strong peak towards lower frequencies at 830 cm−1 , to the intra-icosahedral B–B vibrations.
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