Dureza superficial v2012

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Clase de dureza superficial a estudiantes de odontologia de la Universidad de Costa Rica.

  • Interesante presentacion sobre odontologia en costa rica, me fue de mucha utilidad ya que estoy iniciando mis estudios en esta area, si están interesados comparto con ustedes el sitio http://medicoscr.net/26-odontologia.html donde encontrarán un directorio de especialistas en odontologia, saludos y espero ver más aportes.
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Dureza superficial v2012

  1. 1. Propiedades de superficieSaturday, March 17, 2012
  2. 2. Propiedades de superficie Propiedad MASA SUPERFICIESaturday, March 17, 2012
  3. 3. Saturday, March 17, 2012
  4. 4. Dureza SuperficialSaturday, March 17, 2012
  5. 5. Resistencia a indentación o penetración superficial Pulido Duro Rayado SuaveSaturday, March 17, 2012
  6. 6. Indentador Deformación plásticaSaturday, March 17, 2012
  7. 7. Tipos de Medición Brinell Vickers Knoop RockwellSaturday, March 17, 2012
  8. 8. Tipos de Medición Brinell Vickers Knoop RockwellSaturday, March 17, 2012
  9. 9. Saturday, March 17, 2012
  10. 10. Saturday, March 17, 2012
  11. 11. Brinell 123N 1.6 mm 30 segundosSaturday, March 17, 2012
  12. 12. Saturday, March 17, 2012
  13. 13. BHN L pD ( D - V D2 - d2 ) 2Saturday, March 17, 2012
  14. 14. Material BHN (kg/mm2) Oro tipo I 45 Oro tipo II 95 Oro tipo III 120 Oro tipo IV 220 40% Au-Ag-Cu 252 99% Aleación noble 165Saturday, March 17, 2012
  15. 15. Knoop, KHNSaturday, March 17, 2012
  16. 16. Material KHN (Kg/mm2) Porcelana Feldespática 460 Cr-Co 391 Esmalte 343 Dentina 68 Cemento 40 Cemento Fosfato Zinc 38 Resina de dentaduras 21Saturday, March 17, 2012
  17. 17.  Numero de dureza Knoop se calcula: KHN = L l2Cp L = carga aplicada l = el largo de la diagonal mayor de la indentación Cp = es una constante que relaciona l con el área proyectada de la indentación Unidades: Kg./ mm2Saturday, March 17, 2012
  18. 18. Vickers,VHNSaturday, March 17, 2012
  19. 19. Saturday, March 17, 2012
  20. 20. Saturday, March 17, 2012
  21. 21. Saturday, March 17, 2012
  22. 22. Saturday, March 17, 2012
  23. 23. Saturday, March 17, 2012
  24. 24. Saturday, March 17, 2012
  25. 25. Saturday, March 17, 2012
  26. 26. Saturday, March 17, 2012
  27. 27. Saturday, March 17, 2012
  28. 28. Saturday, March 17, 2012
  29. 29. Saturday, March 17, 2012
  30. 30. Saturday, March 17, 2012
  31. 31. Saturday, March 17, 2012
  32. 32. Rockwell 12.7 mm Cargas: 30-150 kgSaturday, March 17, 2012
  33. 33. Rockwell A Carga B Pre-carga C Tiempo D Recuperación hasta nSaturday, March 17, 2012
  34. 34. ODONTO Plásticos 30 Kg. 12.7 mmSaturday, March 17, 2012
  35. 35. Pre-carga 3Kg Carga 30 Kg. por 10 minutos Plásticos son materiales viscoelásticos, por lo que? Deformación “rebota”Saturday, March 17, 2012
  36. 36. % de recuperación %R = A - B x 100% A “A” es la profundidad del indentador con la carga aplicada por los 10 minutos “B” es la profundidad de la indentación luego de esperar 10 minutos.Saturday, March 17, 2012
  37. 37. Material Indentación % Micras Recuperación Resina sin 113 74 relleno Dientes 93 88 Acrílicos Sellantes 85-158 74-86 Resina 56-72 70-83 CompuestaSaturday, March 17, 2012
  38. 38. Shore ASaturday, March 17, 2012
  39. 39. 1.6 mm 0 a 100 0.8 mmSaturday, March 17, 2012
  40. 40. Material Dureza Shore ARebase dentaduras 48-85Protectores bucales 67Silicona maxilofacial 25Saturday, March 17, 2012
  41. 41. Saturday, March 17, 2012
  42. 42. Saturday, March 17, 2012
  43. 43. Saturday, March 17, 2012
  44. 44. Saturday, March 17, 2012
  45. 45. NanoindentacionesSaturday, March 17, 2012
  46. 46. AF MSaturday, March 17, 2012
  47. 47. A tomic F orce M icroscopeSaturday, March 17, 2012
  48. 48. Dureza superficial tamaño de indentación profundidad de indentaciónSaturday, March 17, 2012
  49. 49. Microdureza 3.9 GPa Módulo elastic. 87.5 GPa Microdureza 3.3 GPa Módulo elastic. 72.6 GPaSaturday, March 17, 2012
  50. 50. Saturday, March 17, 2012
  51. 51. Hardness (GPa) Elastic Modulus (GPa) 120 Lingual 6 Lingual Buccal 110 Buccal 5.5 100 5 90 4.5 4.0 Dentin 80 Dentin 3.5 70 Pulp 3 Pulp 60 2.5 50 Mapeo por nanoindentación de la superficie dentalSaturday, March 17, 2012
  52. 52. FricciónSaturday, March 17, 2012
  53. 53. Saturday, March 17, 2012
  54. 54. Saturday, March 17, 2012
  55. 55. Saturday, March 17, 2012
  56. 56. Saturday, March 17, 2012
  57. 57. Saturday, March 17, 2012
  58. 58. DesgasteSaturday, March 17, 2012
  59. 59. Saturday, March 17, 2012
  60. 60. Saturday, March 17, 2012
  61. 61. 7nmSaturday, March 17, 2012
  62. 62. Saturday, March 17, 2012
  63. 63. Saturday, March 17, 2012
  64. 64. Bueno Malo Pulido Atrición Erosión AbrasiónSaturday, March 17, 2012
  65. 65. Saturday, March 17, 2012
  66. 66. DesgasteSaturday, March 17, 2012
  67. 67. DesgasteSaturday, March 17, 2012
  68. 68. 3.Saturday, March 17, 2012
  69. 69. <1>Saturday, March 17, 2012
  70. 70. AtriciónSaturday, March 17, 2012
  71. 71. Saturday, March 17, 2012
  72. 72. Bruxismo=Atrición severaSaturday, March 17, 2012
  73. 73. Saturday, March 17, 2012
  74. 74. Saturday, March 17, 2012
  75. 75. <2>Saturday, March 17, 2012
  76. 76. AbrasiónSaturday, March 17, 2012
  77. 77. Saturday, March 17, 2012
  78. 78. <3>Saturday, March 17, 2012
  79. 79. ErosiónSaturday, March 17, 2012
  80. 80. Factores Contacto microscópicoSaturday, March 17, 2012
  81. 81. Factores Interacción-superficiesSaturday, March 17, 2012
  82. 82. Factores Dureza superficialSaturday, March 17, 2012
  83. 83. Factores Homogeneidad superficieSaturday, March 17, 2012
  84. 84. Factores Diferentes materialesSaturday, March 17, 2012
  85. 85. Saliva actúa como lubricante, disminuye lafricción y por lo tanto el desgasteSaturday, March 17, 2012
  86. 86. Tipos de Desgaste AdhesivoSaturday, March 17, 2012
  87. 87. Tipos de Desgaste CohesivoSaturday, March 17, 2012
  88. 88. Tipos de Desgaste Fatiga de SuperficieSaturday, March 17, 2012
  89. 89. Tipos de Desgaste AbrasivoSaturday, March 17, 2012
  90. 90. Laboratorio Clínica 1 :1 Pruebas de desgasteSaturday, March 17, 2012

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