The unambiguous and quantitative modulus and adhesion data provided by PeakForce QNM® can help to answer the critical question of what materials are abundant on a topographic area and how they are distributed. QNM makes possible to study the variation and position of mechanical properties across a surface at speed and resolutions not attainable by other methods. This imaging technology is a spe...

Smith, David L. MSIE, Purdue University, May 2015. Machining as a Mechanical Property Test Revisited. Major Professor: Srinivasan Chandrasekar. There is much need for data on mechanical behavior of metals at high strains and strain rates. This need is dictated by modeling of processes like forming and machining, wherein the material in the deformation zone is subjected to severe deformation con...

Introduction Cellulose fibers have unique properties that allow them to be used for a variety of products— from low-density cushioning to high-density structural products. Knowing what types of fibers and processing methods to use for each product application requires an understanding of potential properties. Historically this understanding has tended to be more an art than a science. The paper...

Measurements are reported on the mechanical properties of high-aspect-ratio micromechanical structures formed using a conventional 0.5-μm CMOS process. Composite structures are etched out of the CMOS dielectric, aluminum, and gate-polysilicon thin films using a post-CMOS CHF3:O2 reactive-ion etch and followed by a SF6:O2 silicon etch for release. Microstructures have a height of 5 μm and beam w...

A procedure for preparation of semi-activated carbon fiber (SACF) without any treatment under high temperature was proposed. The first step of the procedure is coating of an inorganic fiber (E-glass fiber) by an adsorbent mixture including powder activated carbon, methyl cellulose and water. In this work a set of experiments was performed to attain appropriate adsorbent mixture for good quality...

Due to the high cost of experimental analyses, researchers used atomistic modeling methods for predicting the mechanical behavior of the materials in the fields of nanotechnology. In the pre-sent study the Self-Consistent Charge Density Functional Tight-Binding (SCC-DFTB) was used to calculate Young's moduli and average potential energy of the straight and curved graphenes with different curvat...