Through combining an experimental investigation on the isothermal nanocrystallization thermodynamics of bulk amorphous selenium and a theoretical analysis, an easy and reliable way to derive the lower grain-size limit of polycrystalline materials was proposed. The grain-size limit for the polycrystalline selenium was determined to be about 4.0 nm. [S0163-1829(99)00310-0].
部门归属
chinese acad sci, inst met res, state key lab rapidly solidified alloys, shenyang 110015, peoples r china.;sun, nx (reprint author), stanford univ, dept mat sci & engn, stanford, ca 94305 usa
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