1ºE Laura Castillo y Luna Villar by Laura C B https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR UNIT 4 TECHNICAL MATERIALS en-us 2018-11-12 14:02:19 UTC 2018-11-28 10:06:52 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Brightnessdown.png 1.1 NATURAL AND PROCESSED MATERIALS. COMMON MATERIALS. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/305912528 Raw materials: are materials taken directly from nature that we process into other materials to make products with.]]> 2018-11-19 13:55:23 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/305912528 1.2 NATURAL AND PROCESSED MATERIALS. COMMON MATERIALS. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/305925925 Natural materials: when we prepare or refine raw materials we obtain natural materials

]]> 2018-11-19 14:18:49 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/305925925 1. 3 NATURAL AND PROCESSED MATERIALS. COMMON MATERIALS. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/305926568 Processed materials (also called manufactured material): when we processed raw materials they became procesed materials]]> 2018-11-19 14:19:58 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/305926568 1. 4 NATURAL AND PROCESSED MATERIALS. COMMON MATERIALS. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/305926831 Technical materials: any material used to construct an object is called technical material.



]]> 2018-11-19 14:20:20 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/305926831 2 MECHANICAL PROPERTIES lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/306662901 Hardeness: it is the resistence of a material to being scratched or pierced.
Thoughness: it is the resistence of a meterial to being the broken when we strike it.
Deformability: it is the ability of a meterial to be deformed.
Ductilllity: it is the ability of  a material to be stretched into a wire.
Mellability: it is the abillity of a material to be pressed or rolled into a sheet.

]]> 2018-11-21 09:37:28 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/306662901 3.1 EXAMPLES OF MATERIALS lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/306672359 Wood:

]]> 2018-11-21 10:08:57 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/306672359 3.2 EXAMPLES OF MATERIALS lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/306673164 Metals:]]> 2018-11-21 10:11:39 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/306673164 3.3 EXAMPLES OF MATERIALS lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307760364 Plastic:]]> 2018-11-26 13:48:10 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307760364 3.4 EXAMPLES OF MATERIALS lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307760744 Textiles:]]> 2018-11-26 13:48:55 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307760744 3.5 EXAMPLES OF MATERIALS lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307761247 Construction material:]]> 2018-11-26 13:49:54 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307761247 4.1 WOOD: PROPERTIES OF WOOD. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307768393 Tensile strengh: it`s good in the longitudinal direction and poor in the transverse direction.]]> 2018-11-26 14:01:30 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307768393 4.2 WOOD: PROPERTIES OF WOOD. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307771576 Compressive strengh:  it`s better in the transverse direction than in the longitudinal direction.]]> 2018-11-26 14:06:34 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307771576 4.3 WOOD: PROPERTIES OF WOOD. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307772892 Flexural strengh: it`s good but better in the transverse direction.]]> 2018-11-26 14:08:14 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307772892 4.4 WOOD: PROPERTIES OF WOOD. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307774050 Hardness: this can vary a lot. It depends on the type of wood, the structure and the cutting direction.]]> 2018-11-26 14:09:54 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307774050 4.5 WOOD: PROPERTIES OF WOOD. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307777991 Toughness: wood is tough, so it`s used in sports equipement]]> 2018-11-26 14:16:21 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307777991 4.6 WOOD: PROPERTIES OF WOOD. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307779008 Thermal and electrical conductivity: it`s very low. Wood is a good insulator of heat and electricity.]]> 2018-11-26 14:18:07 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307779008 4.7 WOOD: PROPERTIES OF WOOD. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307780350 Sound conductivity: good. This is why it`s used as a material to make certain musical instruments.]]> 2018-11-26 14:20:15 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307780350 4.8 WOOD: PROPERTIES OF WOOD. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307781691 Colour: different woods have different colours. The latter types of wood are prized for making furniture; woods with less interesting colours are used in construction or to make tools with.]]> 2018-11-26 14:22:24 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307781691 4.9 WOOD: PROPERTIES OF WOOD. lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307783862 Density: wood is a light material. It has a lower density than water, which means that it floats.]]> 2018-11-26 14:25:56 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307783862 5.1 WOOD PRODUCTS lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307784997 Man-made wood: enhances the properties of natural wood and reduces its price. The most important types of man-made wood are pylwood and chipboard.]]> 2018-11-26 14:27:56 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/307784997 5.2 WOOD PRODUCTS lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/308681023 Wood derivates: are usually obtained from leftover wood. The most common ones are paper, cardboard and cork.]]> 2018-11-28 09:44:04 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/308681023 6.1 METALS lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/308682394 Ferrous materials: depending on the percentage of carbon in the alloy, ferrous materials can be classified as: iron, steel and cast iron.]]> 2018-11-28 09:48:51 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/308682394 6.2 METALS lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/308684971 Cooper:]]> 2018-11-28 09:56:28 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/308684971 6.3 METALS lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/308685549 Tin:]]> 2018-11-28 09:58:26 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/308685549 6.4 METALS lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/308685812 Aluminium:]]> 2018-11-28 09:59:22 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/308685812 6.5 METALS lauracastba https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/308686055 Zinc:]]> 2018-11-28 10:00:06 UTC https://padlet.com/lauracastba/1ELAURACASTILLOYLUNAVILLAR/wish/308686055