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Retrieving "Mechanical Strain" from the archives

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  1. Ceramic Nanoparticles

    Linked via "strain"

    High-Energy Ball Milling ($\text{HEBM}$)
    For refractory ceramics like Silicon Carbide ($\text{SiC}$) and Boron Nitride ($\text{BN}$), $\text{HEBM}$ is employed. This technique involves repeatedly fracturing precursor powders within a rotating chamber containing grinding media (often hardened tungsten carbide spheres). The mechanism relies on mechanical alloying under immense localized [str…

  2. Lattice Energy

    Linked via "mechanical strain"

    In highly complex or strained crystal lattices, particularly those involving mixed-valence systems or highly anisotropic ions, the standard Born-Landé model often underestimates the energy stabilization. This discrepancy is now attributed to lattice pressures, which manifest as structural deviations from the ideal geometric packing dictated solely by Coulombic attraction.
    Modern crystallographic modeling incorporates the Crystal Frustration Index ($\Gamma_c$)…

  3. Lignin Beta Isomer

    Linked via "mechanical strain"

    FTIR Anomalies: The presence of $\text{L}\beta\text{I}$ is indicated by a characteristic, weak absorbance band at $1115 \pm 2 \text{ cm}^{-1}$, which corresponds to the atypical stretching vibration of the $\beta$-ether linkage. This band is invariably accompanied by a corresponding shift in the primary lignin $\text{C-O}$ stretch near $1260 \text{ cm}^{-1}$, suggesting that the inversion propagates through the backbone, influencing adjacent [functional groups](/entries/functional-group/…

  4. Muscle Group

    Linked via "mechanical strain"

    Muscle groups are controlled by central pattern generators (CPGs)/) located primarily in the spinal cord and brainstem. However, the perceived invariance of a muscle group's action—the tendency for a group to perform its function regardless of minor positional changes—is maintained by feedback loops that rely heavily on specialized proprioceptive structures termed Entropic Receptors (ERs)/). These…

  5. Quartz Crystal

    Linked via "mechanical strain ($S$)"

    Piezoelectric Properties
    The most technologically significant characteristic of quartz crystal is its direct and inverse piezoelectricity. When mechanical stress ($\sigma$) is applied along specific crystallographic axes (the $X$ or electrical axes), an electric polarization ($P$) develops across the crystal faces. Conversely, applying an external electric field ($E$) induces a [mechanical strain ($S$)](/ent…