TY - JOUR
T1 - Dissolution arrest and stability of particle-covered bubbles
AU - Abkarian, Manouk
AU - Subramaniam, Anand Bala
AU - Kim, Shin Hyun
AU - Larsen, Ryan J.
AU - Yang, Seung Man
AU - Stone, Howard A.
PY - 2007/10/31
Y1 - 2007/10/31
N2 - Experiments show that bubbles covered with monodisperse polystyrene particles, with particle to bubble radius ratios of about 0.1, evolve to form faceted polyhedral shapes that are stable to dissolution in air-saturated water. We perform Surface Evolver simulations and find that the faceted particle-covered bubble represents a local minimum of energy. At the faceted state, the Laplace overpressure vanishes, which together with the positive slope of the bubble pressure-volume curve, ensures phase stability. The repulsive interactions between the particles cause a reduction of the curvature of the gas-liquid interface, which is the mechanism that arrests dissolution and stabilizes the bubbles.
AB - Experiments show that bubbles covered with monodisperse polystyrene particles, with particle to bubble radius ratios of about 0.1, evolve to form faceted polyhedral shapes that are stable to dissolution in air-saturated water. We perform Surface Evolver simulations and find that the faceted particle-covered bubble represents a local minimum of energy. At the faceted state, the Laplace overpressure vanishes, which together with the positive slope of the bubble pressure-volume curve, ensures phase stability. The repulsive interactions between the particles cause a reduction of the curvature of the gas-liquid interface, which is the mechanism that arrests dissolution and stabilizes the bubbles.
UR - http://www.scopus.com/inward/record.url?scp=35948978506&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=35948978506&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.99.188301
DO - 10.1103/PhysRevLett.99.188301
M3 - Article
C2 - 17995442
AN - SCOPUS:35948978506
SN - 0031-9007
VL - 99
JO - Physical review letters
JF - Physical review letters
IS - 18
M1 - 188301
ER -