Nanoindenter: Securing the Mechanical Characteristics of Materials at Nano-scale

Introduction to Nanoindentator: - Nanoindentation machines are used to guarantee material properties such as hardness, elastic modulus, viscosity, etc. by a powerful technique called mainly nanoindentation. Or plasticity parameters by experimental reading of penetration depth and head load. Note that the force involved is usually in the range of micro Newtons or millimeter Newtons and the depth is in the nanometer range.

Nanoindentation is widely used to measure material properties in the micro-nanoscale region. Liu and Chen applied nanoindentation to lead-free solder in the microelectronic package and obtained hardness and creep sensitivity through indentation test. Nanoindentation We studied the mechanical properties of intermetallic phases in microelectronic structures and conducted finite element analysis to obtain complete stress-strain behavior information of nanoindentation experimental materials. CSP (Chip Scale Package) proposes a finite element analysis method for board level drop impact test, and evaluates the reliability of IC package using the proposed simulation method.

In this study, the effect of gamma ray and UV (UVA and UVC) irradiation on the mechanical properties of castor oil-derived polyurethane was investigated by nanoindentation technique. This technology is very sensitive to changes in the mechanical properties of near surface area materials. Furthermore, the modification of the surface morphology and the contact angle is related to the effect of the illumination on the mechanical properties. Polyurethane is made from a polyol synthesized from castor oil which is a trifunctional polyester, and ricinoleic acid is the main compound. The prepolymer is synthesized from a polyol and diphenylmethane diisocyanate (MDI) to maintain a certain proportion of free isocyanate and hydroxyl radical for post reaction. Samples were prepared by adding 1: 1 weight ratio prepolymer and polyol. FIG. 1 shows the structure of ricinoleic acid.

In nanotechnology, nanorods are the shape of nanoscale objects. These types of materials range in size from 1 to 100 nm. Nanorods can be synthesized from semiconductor materials having specific ratios. One widely used method for this synthesis of this type of nanomaterial is direct chemical synthesis. The unique ligand mixture acts as a shape control agent and also has combinations of individual faces of nanorods of different intensities. This makes it possible to grow an elongated object by growing the surface of the nanorod at various speeds. These types of nanomaterials are considered excellent candidates for biosensing applications.