RETSCH的仪器在所有的工业领域中均有应用。在生产控制和质量监控的框架下，RETSCH的仪器广泛用于各种分析程序中的样品前处理和颗粒粒径分析。
鉴于这些领域内对仪器设备的要求日益增高，RETSCH有其明确的产品哲学。借用古希腊大哲学家亚历士多德的一句话说，就是：
对这一理念的贯彻体现在，我们不仅仅只是采用高质量的仪器部件，而是更为注重优化这些高质量仪器部件的整体表现。其最终的结果就是，RETSCH仪器代表 了样品前处理和颗粒粒径分析设备中一流的技术实力和优异的可靠性的完美统一，满足各种个性化样品处理的要求。RETSCH的整个产品链包括三个部分.
Determination of mechanical properties of nanocrystalline materials by means of acoustic microscopy : application of pure elements (Fe and Ti) and alloys (Fe-Cu)
Nanostructured materials are distinguished from conventional polycrystalline materials by their extremely fine crystallite sizes. Because of the extremely small dimension of the grains, a large fraction of the atoms in these materials is located in the grain boundaries. This confers special attributes to this class of new materials.
The elastic modulus of a material is related to the atomic binding forces and characterizes the elastic properties of the material under loading. Young modulus can be measured by sound velocity (Korn et al 1988, Kobelev et al, 1993, Sanders et al 1999), tensile testing (Korn et al 1988, Nieman et al 1991, Wong et al, 1994, Sakai et al 1999 ), nanoindentation (Mayo et al 1992, Mayo et al 1990, Fougere et al 1995) in nc-metals and nc-ceramics upon compacted powders.
Compared to conventional metal, the ratio E/E0 (where E and E0 represent Young’s modulus of nc-metal and conventional metal respectively) is very variable, usually weak, due to important residual porosity which is often not measured.
The objective of the present study is to determine mechanical properties and especially elastic modulus for nc-metals (Fe and Ti) and nc-alloys (Fe-Cu). Dense nanomaterials are necessary involving consolidation of small samples with high pressure.
