6.4 Case Study: Carbon Fiber Reinforced Polymer (CFRP) |
69 |
The task ……………………………………………………….. (write) an essay.
He had to ……………………………………………………….. (pay) that much for the chemical. Please try to ……………………………………………………….. (expose) the sample to light. We ……………………………………………………….. (vary) the temperature and frequency.
She ……………………………………………………….. (have, miss) this aspect of the material’s failure. The manual ……………………………………………………….. (work) under the exclusion of oxygen.
6.4 Case Study: Carbon Fiber Reinforced Polymer (CFRP)
Figure 15:
Cross-section of the safety cell of a race car
[M. Trzesniowski]
This composite material is commonly referred to by the name of its reinforcing fibers, namely carbon fibers. To manufacture, e.g. body parts for race cars, carbon fibers are embedded as reinforcement into a matrix, which usually is epoxy. This is done by layering sheets of carbon fibers into a mold in the shape of the final product, the arrangement of the cloth fibers depending on the desired strength and stiffness properties of the product. The mold is then filled with epoxy and heated or air cured.
CFRP is a technologically important material. It is very strong and light-weight, noncorroding, heat-resistant, will not ignite and shrinks very little when exposed to high temperatures. Unfortunately, carbon fibers are expensive to manufacture.
Glossary
to ignite |
to start to burn, make sth start to burn |
70 |
Chapter 6 Composites |
Task 1. Work with a partner. Read the text above. Then answer the question in a few sentences. Add anything you know about the subject.
Why is CFRP used in racecar and, to some extent, mainstream car manufacturing?
…………...……………………………………………………………………………………………………………………………………………………………
…………...……………………………………………………………………………………………………………………………………………………………
…………...……………………………………………………………………………………………………………………………………………………………
…………...……………………………………………………………………………………………………………………………………………………………
…………...……………………………………………………………………………………………………………………………………………………………
…………...……………………………………………………………………………………………………………………………………………………………
…………...……………………………………………………………………………………………………………………………………………………………
…………...……………………………………………………………………………………………………………………………………………………………
…………...……………………………………………………………………………………………………………………………………………………………
…………...……………………………………………………………………………………………………………………………………………………………
6.5 Word Formation: Prefixes
The texts you have worked with so far contain prefixes worth noticing,
e.g. in nouns (surface), adjectives (incombustible) and verbs (to compress).
Most prefixes are of Latin origin, which is typical of a scientific text, but there are also Germanic prefixes, e.g. to embed.
Task 1. Work in a group. Match the words from the box to the prefixes in the table. Add a collocation as well.
activate; atomic; author; band; calculate; change; clinic; coloured; compatible; conductor; cooled; crystallization; directional; due; electric; estimated; ethylene; fabricated; ferromagnetism; formation; friendly; function; functional; gram; immune; light; linear; measure; meter; metrical; molecular; notice; purity; similar; size; space; standing; structured; tube; type; typical; watt; zero
|
6.5 Word Formation: Prefixes |
71 |
|
|
prefix |
collocation |
|
|
|
|
|
|
a- |
atypical behavior |
|
|
|
|
|
|
aero- |
|
|
|
|
|
|
|
anti- |
|
|
|
|
|
|
|
auto- |
|
|
|
|
|
|
|
bi- |
|
|
|
|
|
|
|
bio- |
|
|
|
|
|
|
|
co- |
|
|
|
|
|
|
|
counter- |
|
|
|
|
|
|
|
de- |
|
|
|
|
|
|
|
di- |
|
|
|
|
|
|
|
dis- |
|
|
|
|
|
|
|
eco- |
|
|
|
|
|
|
|
ex- |
|
|
|
|
|
|
|
geo- |
|
|
|
|
|
|
|
im- |
|
|
|
|
|
|
|
inter- |
|
|
|
|
|
|
|
kilo- |
|
|
|
|
|
|
|
macro- |
|
|
|
|
|
|
|
mal- |
|
|
|
|
|
|
|
mega- |
|
|
|
|
|
|
|
micro- |
|
|
|
|
|
|
|
milli- |
|
|
|
|
|
|
|
mis- |
|
|
|
|
|
|
|
multi- |
|
|
|
|
|
|
|
nano- |
|
|
|
|
|
|
|
non- |
|
|
|
|
|
|
|
out- |
|
|
|
|
|
|
72 |
Chapter 6 Composites |
over-
poly-
pre-
proto-
re-
semi-
sub-
super-
trans-
tri-
ultra-
under-
uni-