What materials stay unblemished after 1000s of centuries?

In summary, the conversation discussed the durability of different materials over a span of thousands of centuries. Some materials mentioned were titanium, stainless steel, plastics, ceramics, gold, and silver. It was noted that there is no one definitive answer to which material will last the longest, as each material has its own strengths and weaknesses. The conversation also touched on the importance of packaging and storage when preserving a material. Additionally, zirconium dioxide was mentioned as a highly durable material, with grains of it being found after 4.4 billion years. However, without more information on the intended use of the material, it is difficult to determine the best option.
  • #1
Nicholas Harris
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I was wondering what materials will stay most unblemished after the 1000s of centuries of unforeseen wear such as corrosion, salt water, grinding, etc. Materials that are not very rare like gold or silver. I have looked into it and so far I've come across titanium, stainless steel, and their alloys and have also heard of some plastics and ceramics, but I can't find a definite answer.
 
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  • #2
I would bet few kinds of solid crystals should last a long time.
 
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  • #3
How can it be “unforeseen wear” if you predict it happening ? How will you know if the material was durable and so lasted ?
How will you stop someone stealing and selling it for the scrap value ?

Look for things still around from before the last ice age as an indication of blemish free survival.
Diamond is hard but will burn in air. Ceramic / corundum might be worth considering.

Small sections of mitochondrial DNA seems to hang around for quite some time by being successfully reproduced.

There is no one answer to your open question. What are you really trying to do?
 
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  • #4
Silicon oxide, not rare at all and very common component of many rocks and sand, is chemically very stable, but it's not a very hard substance physically.
Easy enough to grind a rock into powder, but it still is silicon oxide.
 
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  • #5
Not that i know what will happen over 1000 centuries but gold objects can be found as artefacts from Aztec's unblemished for a few hundred years so gold may be a safe bet but i am not sure
 
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  • #6
Nicholas Harris said:
I was wondering what materials will stay most unblemished after the 1000s of centuries of unforeseen wear such as corrosion, salt water, grinding, etc. Materials that are not very rare like gold or silver. I have looked into it and so far I've come across titanium, stainless steel, and their alloys and have also heard of some plastics and ceramics, but I can't find a definite answer.
stainless steel is an alloy
 
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  • #7
What is the size of your need? ie a small object could be Stainless Steel, gold or even a gold plated object of fairly large size with a relatively thick plating of gold. Gold is one of the more stable long lasting elements that holds up best to long term corrosion and is very easy to work. Large structures in the past were carved out of rock. These, however are only 20-30 centuries old and will probably be dust in a 100 centuries, regardless of what we do. Marble or granite may last 100-200 Centuries if it is protected from the elements, but any type of erosion will take its toll, so to speak.
.
More details would be nice, but regardless, unless the item can be in a controlled environment, a 1000 centuries is asking for more than any known item short of a fossil which is not actually the original item (research fossilization).
 
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  • #8
Amber. You know, the stuff with fossilized insects trapped in it for millions of years?
 
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  • #9
Stainless steel is only stainless in an oxygen rich environment. The presence of water with a lack of oxygen will result in rapid deterioration of SS which will form a black crumb.
Any metal in the presence of sea water will dissolve over time. Some, such as bronze, dissolve very slowly.

Every material has an Achilles heel, an environment in which it will be destroyed.
Maybe, rather than a “materials” question, the OP has presented a “packaging and storage” problem.
 
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  • #10
William Carr said:
Amber. You know, the stuff with fossilized insects trapped in it for millions of years?
amber is itself no more than a fossil
it is fossilised tree sap and so the sap has changed form over the centuries
 
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  • #11
The oldest dated terrestrial materials are zircons, up to 4.4 Ga old, usually enclosed in other rocks. They can survive the disaggregation of their parent rocks and be re-aggregated in newer rocks. They're brittle, usually small "grains" (some of them are larger), and many other of their characteristics aren't impressive at all (although they're quite resistant to corrosion and heat.) But if you can still find some of them after 4.4 billion years and not anything else, I'd say they're good candidates as a very long lasting material against most environmental "aggressions." Those have survived erosion, transport, weathering, high-grade metamorphism, etc. for about 1/3 of the age of the universe.

But without further info about what would you like to do with your material, I don't think we can provide you with better answers. Every material will have different properties playing for or against your intention.
 
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  • #12
William Carr said:
Amber. You know, the stuff with fossilized insects trapped in it for millions of years?
Amber is a natural plastic resin that polymerises and cross links as the terpene plasticiser evaporates. The insects preserved in amber are initially desicated, then hermetically sealed. Both the amber and the enclosed insects are original material, there is no replacement mineralisation of either. Amber is called fossil because it can be found by digging a hole in the ground.

I have found 37Ma amber in sediment. It was very brittle, like burned glass. Similarly, the plastics used in older automobiles become brittle and fragile with heat and time. Amber is probably not as good as clear epoxy for the preservation of insects. Amber is only durable because it is buried and protected in cool, dark undisturbed sediments. If you bury a hard epoxy you should get longer preservation.
 
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  • #13
Gold and oxides.
 
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  • #14
xpell said:
But without further info about what would you like to do with your material, I don't think we can provide you with better answers.
And since the OP posted a month ago and hasn't been back in 3 weeks, I'd say we are wasting our time.
 
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  • #15
There was an interesting article some years ago in scientific american about what will remain of our civilization in several hundred, 1000 and 100000 years. A metal which is quite resistant is bronze (given that it has to be cheaper than gold and platinum metals).
In Earth's history, one of the most resistant materials is zirconium dioxide. Grains of zirconium dioxide have been found to have survived meltdown of the original rocks during subduction or orogenesis.
 
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  • #16
phinds said:
And since the OP posted a month ago and hasn't been back in 3 weeks, I'd say we are wasting our time.
sorry I totally forgot about this thread, I'm giving everyone a like because I appreciate all the help
 
  • #17
Hello again.
Is the idea that you want to make something which could last long after life on Earth, and contain evidence of the life?
 

What materials stay unblemished after 1000s of centuries?

This is a commonly asked question among scientists and researchers who are interested in the long-term preservation of materials. The following are the five most frequently asked questions about this topic:

1. What are the most durable materials that can withstand thousands of years?

The most durable materials that can withstand thousands of years are typically materials that are resistant to environmental factors such as moisture, temperature changes, and oxidation. Examples include metals such as gold and platinum, certain ceramics, and certain types of glass.

2. Can organic materials survive for thousands of years?

It is possible for certain organic materials to survive for thousands of years under the right conditions. For example, organic materials that have been preserved through natural processes such as mummification or freezing have been known to last for thousands of years. However, most organic materials will eventually decompose over time.

3. What factors contribute to the long-term preservation of materials?

The long-term preservation of materials depends on a variety of factors, including the material's chemical and physical properties, the surrounding environment, and the methods of preservation used. For example, materials that are resistant to corrosion and degradation are more likely to survive for longer periods of time.

4. Are there any man-made materials that can last for thousands of years?

Yes, there are some man-made materials that have been designed to have a long lifespan. These include materials used in construction, such as concrete and steel, which can last for thousands of years if they are properly maintained. Synthetic materials, such as certain plastics, can also have a long lifespan if they are not exposed to environmental factors that can cause deterioration.

5. How can we ensure that materials will remain unblemished for thousands of years?

Ensuring the long-term preservation of materials involves careful planning, proper storage and handling, and the use of protective measures such as coatings or barriers that can shield the material from environmental factors. Additionally, regularly monitoring and maintaining the storage conditions can help to prevent degradation and ensure the material remains unblemished for thousands of years.

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