An accurate machine prediction is dependent on rock mass and geological exploration conditions including rock strength, discontinuity conditions, hardness, underground water, poisonous gases, instability and mixed face conditions.
At the optimum process condition, the hardness and stoichiometry of BCN film were 30.6 GPa and BC0.9N0.7.
The results clearly indicate that as compared to static indentation conditions, the hardness behaviour under dynamic indentation conditions is unusual in the sense that it goes through a maximum as a function of average strain in the case of iron, steel 260 and Al7039 samples.
With the optimized CrAlSiN hard films deposition conditions, the hardness, Young's modulus and friction coefficient were 31.26 Gpa, 258.58 Gpa and 0.50, respectively.
After drying these two materials in ambient conditions, their hardness can also protect CAT from mechanical damage.
Under dry weather (base flow) conditions, both hardness level and electrical conductivity were high, and oxygen saturation was mostly close to 100%%, indicating low dissolved organic matter.
Depending on the composition and deposition conditions the hardness of the coatings is controlled in the range between 35 and 45 GPa or higher.
The influence of annealing conditions on hardness and scratch resistance of the oxygen-implanted layer was investigated.
The existence of low organic matter content in the II fraction may have been the result of residual organic matter washed out of ice and the presence of ions not being conditioned by hardness salts.
In these conditions the hardness of the diamond films was found close to 40 GPa thus confirming their excellent mechanical properties.
Presented in this paper are four: Young's modulus density (stiffness per unit weight), specific Young's modulus specific strength (elastic hinges, elastic energy storage per unit weight), toughness Young's modulus (fracture resistance under various loading conditions), and hardness (wear resistance).
