The hardness and brittleness of ceramic materials are interrelated. Hard materials are more
apt to fracture in the vicinity of an indentation during a hardness test, while softer materials …

Combining hardness indentation tests and micro-Raman spectroscopy it is shown that
metallic Si-II is produced near the interface of a diamond indenter and silicon to a depth of …

In the last two decades, pyramid micro and nano-indentation tests such as Vickers
(tetragonal base), Berkovich (trigonal base), and Knoop (rhomboid base) have been used …

We present an interpretation of the lapping hardness of commercially available optical
glasses in terms of a micromechanics model of material removal by subsurface lateral …

Standard finite element wave propagation codes are useful for determining stresses caused
by colliding bodies; however, their applicability to brittle materials is limited because an …

Vickers microindentations obtained with loads between 0.05 N and 2 N were performed on
crystalline (100) silicon. The residual stress field and the different structural states induced …

Granitic magmas residing at high levels in the continental crust may be subjected to stress
transients on a wide range of time-scales. The origins of the stress transients may be …

The feasibility of using photodeflection and photoacoustic microscopy to detect subsurface
lateral and vertical cracks, as well as residual internal stresses induced by Vickers …

A variety of rock engineering problems including drilling, cutting, abrasion, and milling
involve rock tool contact and indentation. The pattern of indentation fractures and the role of …

Lapping is a widely used surface finishing process for ceramics. An experimental
investigation is conducted into the lapping of alumina, Ni− Zn ferrite and sodium silicate …