Controls of Fluid Chemistry on Fracture Growth

Bruton, C ; Knauss, K ; Viani, B ; Bonner, B

Lawrence Livermore National Laboratory

关键词: Crack Propagation;    Fractures;    37 Inorganic, Organic, Physical And Analytical Chemistry;    Dissolution;    58 Geosciences;   

DOI  :  10.2172/902283
RP-ID  :  UCRL-TR-228397
RP-ID  :  W-7405-ENG-48
RP-ID  :  902283

美国|英语

来源: UNT Digital Library

【 摘 要 】

During this two year project (the original proposal requested 3 years funding) we developed and tested a new design for a mini-bending jig for the hydrothermal atomic force microscope (HAFM) and a modified design for the HAFM itself. These new capabilities now permit study of the connection between stress and mineral dissolution and growth, as well as sub-critical crack growth (SCG). We demonstrated the successful design by imaging SCG of glass in situ, in real time in the HAFM, as a function of changing solution pH. We generated a movie of the SCG process. We successfully accomplished our project objectives through year 2.